Mechanical Engineering > Gate 2022 Set-1 > Percentage
The average of the monthly salaries of M, N and S is ₹ 4000. The average of the monthly salaries of N, S and P is ₹ 5000. The monthly salary of P is ₹ 6000.What is the monthly salary of M as a percentage of the monthly salary of P?
Correct : a
The average salary of M, N and S is ₹4000, while the average salary of N, S and P is ₹5000. P's salary is ₹6000. We need to find M's salary as a percentage of P's salary.
Solution:
From the first average:
M + N + S = 4000 × 3 = ₹12,000
From the second average:
N + S + P = 5000 × 3 = ₹15,000
Since P = ₹6,000:
N + S = ₹15,000 − ₹6,000 = ₹9,000
Therefore:
M = ₹12,000 − ₹9,000 = ₹3,000
M's salary as a percentage of P's salary:
(3000 ÷ 6000) × 100 = 50%
A) 50: Correct. M's salary is 50% of P's salary.
Correct Answer: A) 50%
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