Answer :

Solution :

Average of salaries of M, N, and S = Rs. 4000

Sum of salaries of M, N and S = (4000 × 3) = Rs. 12,000.

Average of salaries of N, S, and P = Rs. 5000

Sum of salaries of N, S and P = (5000 × 3) = Rs. 15,000.

Given salary of P is = Rs. 6000

∴ salary of N and S is = 15000 - 6000 = Rs. 9000.

∴ salary of M will be = (Sum of M, N and S) - (Sum of N and S)

∴ salary of M will be = 12,000 - 9,000 = Rs. 3,000

∴ the monthly salary of M as a percentage of the monthly salary of P is:

$\frac{M}{P}\times 100\mathrm{\%}$

$\frac{3000}{6000}\times 100\mathrm{\%}=50\mathrm{\%}$