Three Friends are Buying a Gift for a Friend. Declan Contributes 4 Dollars GMAT Problem Solving

Question: Three friends are buying a gift for a friend. Declan contributes 4 dollars more than 1/4 the cost of the gift, Ed contributes 1 dollar less than 1/3 the cost of the gift, and Frank contributes the remaining 22 dollars. What is the cost of the gift?

  1. 48
  2. 54
  3. 60
  4. 66
  5. 72

Correct Answer: C

Solution and Explanation
Approach Solution 1:

It is asked What is the cost of the gift If Three friends are buying a gift for a friend.Lets solve this question using the reasoning approach-
Let Declan be D, Ed be E, Frank be F and,
Total be T
Evaluating it further-
D + E + F = T
(T/4 + 4) + (T/3 - 1) + 22 = T
T = 25 + (7T/12)
12T = 25(12) + 7T
5T = 5*5(12)
T = 60
The cost of the gift is 60 dollar

Approach Solution 2:
There is another approach to solve this question-
Let us solve this question-
Let's say the gift costs x dollars.
Since Declan contributes 4 dollars more than the \(\frac{1}{4}\)gift's cost,
As a result, Declan's contribution = \(\frac{x}{4}\)+4
In addition, Ed contributes one dollar less than the \(\frac{1}{3}\)cost of the gift.
As a result, Ed's contribution = \(\frac{x}{3}\)-1
Frank contributes the remaining 22 dollars once more.
Since, Only three people contributed.
Therefore total price of cost = \(\frac{x}{4}\)+ 4 + \(\frac{x}{3}\)-1+ 22
Let us evaluate further-
= \(​​\frac{3x+4x}{12}\)+25
= \(​​\frac{7x}{12}\)+25
= \(​​\frac{7x}{12}\)+25=x
= \(​​\frac{7x}{12}\)=x-25
7x = 12x-300
7x = 12x-300
300= 12x-7x
300 = 5x
x = \(​​\frac{300}{5}\)
x = 60
The cost of the gift is 60 dollar

Approach Solution 3:
Let the total price of gift = 12x

D pays 3x + 4
E pays 4x - 1

Therefore , F pays 12x - (3x + 4 + 4x -1 ) = 12
or x = 5.
Hence, total cost = 12 * 5= 60. 

“Three friends are buying a gift for a friend. Declan contributes 4 dollars”- is a topic of the GMAT Quantitative reasoning section of GMAT. To solve GMAT Problem Solving questions a student must have knowledge about a good amount of qualitative skills. GMAT Quant practice papers improve the mathematical knowledge of the candidates as it represents multiple sorts of quantitative problems.


Suggested GMAT Problem Solving Questions

Fees Structure

CategoryState
General15556

In case of any inaccuracy, Notify Us! 

Comments


No Comments To Show