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Re: Quant Question of the Day Chat [#permalink]
fatema199 wrote:
The value of (-11)+(-12)+(+13)+ --------(-110) is :

we can use some statistics theory here:
average: (-11+(-110))/2=(-121/2)
number of items: (110-11+1)=100
multiply the two:
-121*50
-6050

Any set that is evenly spaced has average=median

Originally posted by mysterymanrog on 08 Jul 2023, 10:24.
Last edited by mysterymanrog on 08 Jul 2023, 10:27, edited 1 time in total.
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Re: Quant Question of the Day Chat [#permalink]
Mr. Alfred buys two lots mangoes. the first lot costs him TK.300 per dozen and the second TK. 500 per dozen. He sold all the mangoes at TK. 400 per dozen. Find his profit/loss percentage if he spent the same amount of money on each of the lots.

easy solution plz
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Re: Quant Question of the Day Chat [#permalink]
fatema199 wrote:
Mr. Alfred buys two lots mangoes. the first lot costs him TK.300 per dozen and the second TK. 500 per dozen. He sold all the mangoes at TK. 400 per dozen. Find his profit/loss percentage if he spent the same amount of money on each of the lots.

6.67%

Assume he spent a total of Tk.1500 on each lots
Dozens of the first lots=1500/300= 5
Dozens of the second lots=1500/500=3
Total Dozens for both lots= 3+5=8
Total cp for both lot= 8(150+150)=3000
Total sp for both=8×400=3200
Profit= (3200-3000)/3000)×100= 6.67%
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Re: Quant Question of the Day Chat [#permalink]
Three consecutive eveb numbers are such that if the first is divided by 6, the second by 4 and the third by 7, the sum of the quotients is 38. Find the numbers.

ans expalin
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Re: Quant Question of the Day Chat [#permalink]
Are the numbers 66, 68, 70?
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Re: Quant Question of the Day Chat [#permalink]
Any one out there quite prepped for quant, up for a study partner?

2-3 people together? On a https://gmatclub.com/chat?
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Re: Quant Question of the Day Chat [#permalink]
Niv1992 wrote:
Any one out there quite prepped for quant, up for a study partner?

Im done with quant.revising so can join
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Re: Quant Question of the Day Chat [#permalink]
fatema199 wrote:
Three consecutive eveb numbers are such that if the first is divided by 6, the second by 4 and the third by 7, the sum of the quotients is 38. Find the numbers.

(X/6) +(x+2/4)+(x+4/7)= 38
X=66
X+2=68
X+4=70
The numbers are 66,68,70
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Re: Quant Question of the Day Chat [#permalink]
It is estimated that of living will increase by 8.50 percent per year. How much should a piece of candy cost in tree years if it costs Tk. 1.50 today?
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Re: Quant Question of the Day Chat [#permalink]
fatema199 wrote:
It is estimated that of living will increase by 8.50 percent per year. How much should a piece of candy cost in tree years if it costs Tk. 1.50 today?

1.5(1.085)³=Tk 1.92
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Re: Quant Question of the Day Chat [#permalink]
At a photocopy center , the first 10 copies cost x taka each. Each of the next 50 copies costs 2 taka less per copy . From the 61 st copy on, the cost 1 Taka per copy, In terms of x how much does it cost in. Taka to have 200 copies made/

explain ans

Originally posted by fatema199 on 09 Jul 2023, 14:14.
Last edited by fatema199 on 09 Jul 2023, 14:15, edited 1 time in total.
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Re: Quant Question of the Day Chat [#permalink]
fatema199 wrote:
At a photocopy center , the first 10 copies cost x taka each. Each of the next 50 copies costs 2 taka less per copy . From the 61 st copy on, the cost 1 Taka per copy, In terms of x how much does it cost in. Taka to have 200 copies made/

I think answer should be 60x+40
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Re: Quant Question of the Day Chat [#permalink]
Yes correct recuse link for gmat free practice

Not revised
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Re: Quant Question of the Day Chat [#permalink]
Akshay790 wrote:
I think answer should be 60x+40

can you explain this ans? cause i can’t understand this math solve
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Re: Quant Question of the Day Chat [#permalink]
100

eqation times add

math

Originally posted by nilofermunshi791 on 09 Jul 2023, 17:35.
Last edited by nilofermunshi791 on 09 Jul 2023, 17:36, edited 1 time in total.
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Re: Quant Question of the Day Chat [#permalink]
PS Question - July 10

How many positive divisors of 12,500 are squares of integers (aka perfect squares)?

A) three
B) four
C) six
D) eight
E) twelve

Source: GMATPrepNow | Difficulty: Hard

DS Question - July 10

If x and y are non-zero integers and |x| + |y| = 32, what is xy?

(1) -4x – 12y = 0

(2) |x| – |y| = 16

Source: Manhattan | Difficulty: Hard
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Re: Quant Question of the Day Chat [#permalink]
gmatophobia wrote:
PS Question - July 10 How many positive divisors of 12,500 are squares of integers (aka perfect squares)? A) three B) four C) six D) eight E) twelve Source: GMATPrepNow | Difficulty: Hard

12500 = 2^2* 5^5 = 4^1*25^2*5

No. of Perfect Squares= (1+1)*(2+1) = 2*3 = 6 (C).
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Re: Quant Question of the Day Chat [#permalink]
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