A woman buys equal numbers of $1.25 and 85-cent greeting cards for $25

Question

Competition Mode Question

A woman buys equal numbers of $1.25 and 85-cent greeting cards for $25.20. How many cards does she buy?

A. 8
B. 12
C. 20
D. 24
E. 28

rajatchopra1994 · Answer

Explanation:

1.25x + 0.85x = 25.20
2.1x = 25.20
x=12

Total no of cards = 2x =2*12
=24

IMO-D

yashikaaggarwal · Answer

Since same number of cards are purchased for $1.25 and 0.85$, amounted to 25.20$
Let the number of cards purchased be x,
1.25$(x) + 0.85$(x) = 25.20$
2.1$(x) = 25.20$
X = 25.20$/2.1$
X = 12

She purchased 12 cards costing 1.25$ and 12 cards costing 0.85$ = 24 Cards

Answer is D

Satishqwerty · Answer

Let number of $1.25 greeting cards be x, then number of 85-cent greeting cards will also be x. 
Total number of cards =  2x

Total cost = $25.20
 1.25x + 0.85x = 25.2 
 2.1x = 25.2 
 x = \frac{252}{21}

x = 12

Total number of cards =  2 	imes 12 = 24

OA,D

daniformic · Answer

1,25x + 0,85x = 25,2
1,25(12) + 0,85(12) = 25,2
15 + 10,2 = 25,2
12x2=24

IMHO -->  D

sambitspm · Answer

TIME 0:57

IMO B
OA D

Kindly see the attachment. I have documented the steps that I took during the exam mode for this question.

UPDATE: I even wrote that 2n needs to be calculated. And I still marked n. BIG MISTAKE.

Neha2404 · Answer

IMO-D
 women buy X cards after paying =1.25x
 And another X cards after paying =.85x

1.25x+.85x=25.2
2.1x=25.2
X=12

Total no of cards =2x
 =2*12
 =24

Posted from my mobile device

Papist · Answer

T = x + y, where T is the number of total cards, x is the number of 1.25 cards and y is the number of .85 cards. We are told that 25.20 = 1.25x + .85y. Since x = y, we can use substitution to solve for x => x = 12. Since T = x + y and x=y, T = 12 + 12 = 24.

ANSWER: D

AnubhaVerma · Answer

x(1.25+0.85)=25.2
x(2.1)=25.2
x=12
so the woman buys 12 cars of $1.25 and 12 cards of 85-cent
therefore, she buys total of 24 cards

exc4libur · Answer

1.25x+0.85x=25.2, 2.1x=25.2, x=12
2x=24

Ans (D)

monikakumar · Answer

A woman buys equal numbers of $1.25 and 85-cent greeting cards for $25.20. How many cards does she buy?

A. 8
B. 12
C. 20
D. 24
E. 28

1 dollar = 100 cents
so,
125x + 85y = 2520
since x=y,
210x = 2520
x=12
so total =24

Ans D

bumpbot · Answer

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A woman buys equal numbers of $1.25 and 85-cent greeting cards for $25

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A woman buys equal numbers of $1.25 and 85-cent greeting cards for $25

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