Question

A, b and c spend 80%, 85% and 75% of their incomes respectively. If their savings are in the ratio 8:9:20 and the difference between the incomes of a and c is rs 18000, then the income of b is

Answer 1

Answer:

answer is 27000 for b plese view the above picture for solution

Answer 2

The income of b would be Rs. 27000.

Step-by-step explanation:

Since we have given that

Expenditure by A, B and C = 80% , 85% and 75%

So, Savings of A, B and C = 20%, 15% and 25%

So, it becomes,

$20a:15b:25c=8:9:20\\\\4a:3b:5c=8:9:20$

So, it becomes,

$4a=8\\\\a=2\\\\and\\\\3b=9\\\\b=3\\\\and\\\\5c=20\\\\c=4$

a:b:= 2:3:4

So, According to question, it becomes,

$4x-2x=18000\\\\2x=18000\\\\x=\dfrac{18000}{2}\\\\x=9000$

So, the income of b would be $9000\times 3=27000$

# learn more:

The annual income of A, B and C taken together is Rs 1800. They spend 75%, 85%, and 80% respectively of their incomes. If their annual savings are in the ratio 20:9:8, find the annual savings of each.

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