Question

A,B and C who together earn Rs.7600,spend 70%, 75% and 80% of the salaries respectively.if their savings are as 4:5:6 respectively, find the salary of B ?

Answer 1

Let Salary of A = A
   Salary of B  = B
   Salary of C  = C

Thus According to question
A + B + C = 7600 Rs                   Eqn 1

Savings are in ratio     4:5:6
Thus Savings by A = 4x
                            B = 5x
and                      C = 6x

Let money spent by A be a
thus        A = a + 4x
               A = 0.7A + 4x
                0.3A = 4x
and 
              B = b +  5x
              0.25 B = 5x
             
              C = c + 6x
               0.2 C = 6x

Adding above we get
A + B + C = 4/0.3 x + 5/0.25 x + 6/0.2 x
7600 = (13.33 + 20 + 30 ) x
Thus x = 120
Thus
B = 5 *  120   / 0.25
   = 2400 Rs

Answer 2

Answer:

Step-by-step explanation: