Question

The ratio of a father's salary to his son's salary is 3:2 , whereas the ratio of the son's salary to his mother's is 4:5 . If the mother earns Rs . 45,000, calculate the salary of the father. ​

Answer 1

Answer:

So mother's salary = rs.45,000

Ratio of son : mother salary = 4:5

4+5 = 9

so mothers salary = 5/9 × X = 45000

So 5X = 45000 × 9

X = 45000 × 9 = 9000 × 9 = rs.81000

           5 (cancel 5 and 45000)  

so total of mother's and sons salary = rs.81000

So sons salary = 81000 - 45000 = rs. 36000

Ratio of father : son = 3 : 2

3+2 = 5

Total of their salary = Y

So sons = 2/5 × Y = 36000

2Y = 36000 × 5

So Y = 36000 ×5 =  18000 × 5 = 90,000

                  2(cancel 36000 and 2)

So father's salary = 90,000 - 36000 = Rs. 54000

Hope this helps :)

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