The average income of A, B and C is Rs. 12,000 per month and average…

Question

The average income of A, B and C is Rs. 12,000 per month and average income of B, C and D is Rs. 15,000 per month. If the average salary of D be twice that of A, then the average salary of B and C is in Rs. :

Accepted Answer

Option C. 13,500. Answer & Solution Answer: Option C Solution: & A + B + C = 12000 × 3 & B + C + D = 15000 × 3 & D - A = 3000 × 3 = 9000 & Also,\,D = 2A & Then,\,D = 18000\, and\,A = 9000 & Therefore, & Average\, salary\, of\,B\, and\,C, & = 45000 - 18000 2 & = 13500