Question
Quantitative Aptitude Question on Ratio and Proportion
A group of friends decided to share the cost of a gift equally. If each person contributed Rs. 50, the amount would have been short by Rs. 20. However, if each person contributed Rs. 60, they would have Rs. 30 more than the required amount. What is the price of the gift?
A
450
B
270
C
200
D
540
Answer
270
Explanation
Solution
From the first scenario:
Total contribution = N × 50
Equation: N × 50 = P - 20
From the second scenario:
Total contribution = N × 60
Equation: N × 60 = P + 30
Subtracting the first equation from the second:
N × 60 - N × 50 = P + 30 - (P - 20)
10N = 50
N = 5
Substituting N = 5 in the first equation:
5 × 50 = P - 20
250 = P - 20
P = 270