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She will purchase a combination of standard baskets($30 each), and premium baskets ($50 each). Her total budget for the gift baskets is exactly $1,100, all of which must be spent on these two items. total number of baskets purchased (standard and premium combined) must be at least 25 but no more than 30.

30s+50p= 1100 _____(1)
25≤s+p≤30 ______(2)

Minimum possible number of premium baskets the planner could purchase.
Starting by putting minimum values given in (1) and check whether the sum of two satisfy (2)
p=10.
30s+50(10)= 1100
30s=1100-500=600
s=600/30=20
In (2), s+p=20+10=30 . It satisfies (2).

the Maximum possible number of premium baskets the planner could purchase.
Starting by putting maximum values given in (1) and check whether the sum of two satisfy (2)
P=16.
30s+50(16)=1100
30s=1100-800=300
s=300/30= 10
In (2), s+p=10+16=26. It satisfies (2).

Min= 10 & Max= 16
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very simple lets x premium purchase and y standard basket

then 50x+30y=1100

maximum premium purchase can be 1100/50=22

But number should be more than 25 and less than 30

so by decreasing 3 premium basket which is multiple of 30 we can buy 5 standard. so number will increase by 2

it will become 24. again insufficient number

another 3 premium basket replacement with standard 5 basket will increase number by 2
so total 26 sufficient.

so total premium basket decrease by 22-3-3=16 and total standard basket will be 10. ( this is the maximum premium basket which can be bought.

for minimum we go further down for another 3 premium basket 5 standard will increase total number by 2, so total 28.

premium 13 and standrad-15

another 3 premium basket for 5 standard basket

premium 10 standard-20 total 30. as per question we cant go beyond 30 so this is the minimum we have to buy.
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Let,
x = No. of standard basket
y = No. of premium basket

we have,
30x + 50y = 1110
3x + 5y = 110 .....eq (i)

25 <= x + y <= 30 ......eq (ii)


Check:
xyx+y
102030
29
131528
27
161026

Minimum value of premium basket = 10
Maximum value of premium basket = 16

Answer:
Minimum = 10
Maximum = 16

Bunuel
A corporate event planner is purchasing gift baskets for an upcoming gala. She will purchase a combination of standard baskets, which cost $30 each, and premium baskets, which cost $50 each. Her total budget for the gift baskets is exactly $1,100, all of which must be spent on these two items. To ensure every VIP receives a basket without overstocking the display tables, the total number of baskets purchased (standard and premium combined) must be at least 25 but no more than 30.

In the table below, identify the Minimum possible number of premium baskets the planner could purchase, and the Maximum possible number of premium baskets the planner could purchase. Make only two selections, one in each column.
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My answer is Minimum Premium = 10
Premium = 10 x $50 = $500
Standard = 20 x $30 = $600
Total = 30 = $1,100
Maximum Premium = 16
P = 16 x $50 = $800
S = 10 x $30 = $300
Total = 26 = $1,100
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a=no of standard baskets
b=no of premium baskets

30a+50b=1100
30a/10+50b/10=1100/10
3a+5b=110

3a=110-5b 3a/3=110/3-5b/3
for a to be an integer 110-5b must be divisible by 3
test the potentials of b increasing by 3

if b=1 a=105/3=35
b=4 a=90/3=30
b=7 a=75/3=25
b=10 a=60/3=20
b=13 a=45/3=15
b=16 a=30/3=10
b=19 a=15/3=5
b=22 a=0/3=0

(a+b) must be 25 and 30 (25greater or equal to a+ b greater or equal to 30)
feed in
b=1 35+1=36 high
b=4 30+4=34 high
b=7 25+7= 32 high
b=10 20+10=30 good
b=1315+13=28 good
b=16 10+16=26 good
b=19 5+19=24 small
b=22 0+22=22 small

b is 10,13,16
min=10
max=16
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Let teh number of standard baskets bought is s and premium baskets is p
30s+50p=1100 --budget constraint
25<=s+p<30.
the valid values of s+p are 25,26,27,28,29.
s=25-p, 26-p, 27-p,28-p and 29-p.
To get an integer values of p
We pick two cases s=26-p and 28-p this would result in substituting the values of s in the budget equation as p=16 and p=13 respectively.
Which are the maximum and minimum number of premium baskets we should be stocking
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Let us assume:
S= Standard baskets
P= Premium Baskets

From the question we get
30S + 50P=1100 (1)
And
25<=S+P<=30. (2)

From (1), we get S= 110-5P/3

And considering that S must be an integer, that gives us that 110-5P is divisbile by 3.

According to the divisibility and remainder rules, therefore, possible choices= 1,10,13,16,22

Checking it against the min and max criteria for the standard and premium basked we get the answer.
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S = Standard P= Premium
30S + 50P = 1100
3S + 5P =110
Min 1 S from 110 we get 16
Total 17 not acceptible
min P 10, S is 20 accept

max 22. it is out of range
max Max 16, gives 10 S accept
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My answer is Min = 10 and Max = 16. Here is what I did.

Total costs of the baskets bought will be:
30x + 50y = 1100

But, \(25 <= x+y <= 30\)

Taking the max value of y given in the options as 22:

30x + 50 * 22 = 1100
30x = 0
In this case, there won't be any money left to buy the standard baskets.

Next, we try 20:
30x + 50 * 20 = 1100
30x = 100

We can see that x will not be an integer, so this option is not correct.

Next is 16, which satisfies the above equation:
30x + 50 * 16 = 1100
30x = 300
x = 10
So, number of standard baskets will be 10. Total baskets that can be bought = 26

Similarly taking 1 and 10 as minimum values, 10 satisfies the equation. In that case, total baskets will be 30.
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I have a slight confusion on this. I am not 100% sure if I got this right. Here's how I did it:

Let the number of standard baskets purchased be s and premium baskets be p.

Thus we are given that
30s + 50p = 1100
Simplifying, we get 3s + 5p = 110 ___ (1)

We are also given that 25 <= (s+p) <= 30

After this we just plug different values of p in equation 1.
When, p = 1, s = 35, s+p = 36. Hence, p=1 cannot be an option

p = 10, s = 20, s+p = 30. Valid, keep for now.

p = 13, s = 15, s+p = 28. Valid, keep for now.

p = 16, s = 10, s+p = 26. Valid, keep for now.

p = 20, s = 3.33. Since we cannot have a fraction of a basket, Eliminate.

p = 22, s = 0, s+p = 22. Since we are given that it has to be a combination of both p and s baskets purchased, if she does not purchase any s baskets, then that is violated. Hence I chose to eliminate this.

Thus I went for Minimum 10 premium baskets and Maximum 16 premium baskets
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Let Standard be x premium be y

50x+ 30y = 1100; this is a Diophantine eqn.

Solving = 5x+ 3y = 110

x + y has to be at least 25 and no more than 30.

3 can be in multiples of 5 / 10 / 15 etc only than the eqn satisfies.

try 3(5) then y is 19 total 24 works
3 (10) y is 16 total 26 works
3 (15) y is 13 total 28 works
3 (20) y is 10 works
3 (25) y is 7 total 32 doesnt work.

choose from abobe max and min of y, 10 and 16.
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In the question it is given that
30 S + 50 P = 1100 ( s= no. of standard baskets and P = no. of premium baskets).

substituting the S and P values in trail and error, we get the following
SPTotal(S+P)
51924
101625
151328
201030

Beyond this the total no. of baskets will go above 30 which will deviate from the question.

hence from the table, considering the minimum total basket condition as 25
the minimum premium baskets = 10 and max = 16

Bunuel
A corporate event planner is purchasing gift baskets for an upcoming gala. She will purchase a combination of standard baskets, which cost $30 each, and premium baskets, which cost $50 each. Her total budget for the gift baskets is exactly $1,100, all of which must be spent on these two items. To ensure every VIP receives a basket without overstocking the display tables, the total number of baskets purchased (standard and premium combined) must be at least 25 but no more than 30.

In the table below, identify the Minimum possible number of premium baskets the planner could purchase, and the Maximum possible number of premium baskets the planner could purchase. Make only two selections, one in each column.
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Important line to notice = ALL of the BUDGET must be spent on these two items

In this question simply write the constraints and details given.
Abbreviations used: 's' = number of standard baskets
'p' = number of premium baskets

25 =< s + p =< 30

That means the total number of baskets shall be within the given range.

$30s + $50p = $1100
Simplified to; 3s+5p = 110

Now the best way to solve is put the value of 'p' from the given options and check what would give integral value of 's' and also satisfy the condition of total number of baskets within the given range

a) 1
3s + 5 * 1 = 110
s = 105/3 = 35 , not a possible result as the total number of baskets exceeds 30

and when we do this process for each option then we would find that the max and min. values of 'p' that satisfies the condition are 10 and 16 respectively
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x is number of premium baskets and y is number of standard baskets.

For Maximum we minimise the number of baskets: 30x + 50y =1100; x+y =25; then x = 25-y. Upon solving we 2y=35; hence not possible. We then move x+y=26, and then we get y as 16 and x as 10. Hence maximum premium baskets is 16.

For minimum we maximise the number of baskets: 30x + 50y = 1100; x+y = 30; x = 30-y. Upon solving we get y as 10. Hence, minimum premium basket is 10.
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Let the no of std basket be x and no of Premium basket be y
Now As per Q, 30x+50y = 1100 or 3x+5y=110
Also 25<= x+y <=30

For minimum y,
USing substitution if I put y min =1, x= 35 which is not possible since x+y must be <=30
Next min value = y= 10, we get x= 20. Perfect! So Minimum Value of y=10

For maximum y,
Using max value 22, x=0, not possible since x+y must be >=25
next value =20, x=10/3 not possible
next value y=16, x=10. Perfect!. So maximum value of y =16

Bunuel
A corporate event planner is purchasing gift baskets for an upcoming gala. She will purchase a combination of standard baskets, which cost $30 each, and premium baskets, which cost $50 each. Her total budget for the gift baskets is exactly $1,100, all of which must be spent on these two items. To ensure every VIP receives a basket without overstocking the display tables, the total number of baskets purchased (standard and premium combined) must be at least 25 but no more than 30.

In the table below, identify the Minimum possible number of premium baskets the planner could purchase, and the Maximum possible number of premium baskets the planner could purchase. Make only two selections, one in each column.
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Hello ,
This question can be solved by special equation

30X+50Y=1100
where 25<=x+y<=30

Here
x can take value as 5,10 ,15,20,25,30,35
correspondingly Y can take 19,16,13,10,7,4,1

when we add x+y there is also restriction on total no

only valid value of (x,y)= (10,16),(15,13),(20,10)

so max Y is 16 and minimum is 10
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The correct answer is
Minimum- 10 and Maximum- 16

From the question we can say,
Standard (S)= 30$
Premium (P)= 50$
Total spend= 1100$
30S+50P= 1100; 3S+5P=110
25<S+P<30

Lets put in the opitions
If P=1
3S+5(1)= 110
3S=110-5
3S=105
S=15
S+P=16 so we can eliminate this option

If P=10
3S+5(10)=110
3S=110-50
3S=60
S=20
S+P=30, this fits our range.

If P= 13
3S+5(13)=110
3S=110-65
3S=45
S=15
S+P=15+13=28; this fits our range.

If P=16
3S+5(16)=110
3S+80=110
3S=30
S=10
S+P= 10+16=26. This fits our range

If P=20
3S+5(20)=110
3S=110-100
3S=10
S=10/3=3/33 which does not fit our range.

we can eliminate P=22 as well.

So, 10 is the minimum number of premium baskets, and 16 is the maximum.
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