Question

The monthly pocket money of Ravi and Raj are in the ratio 5:7. Their expenditure ratio 1:2.If each saves Rs.40,find their monthly pocket money
please answer this asap
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Answer 1

Answer:

Ravi's monthly pocket money: 22.22

Raj's monthly pocket money: 31.108

Step-by-step explanation:

The total expense is equal to total income minus savings.  Expense = Income - Savings  

In this question, pocket money will act as income. Income = Expedinture + Savings

Construct the relation as per the given question.  

Ravi's expense: 5x - 40

Raj's expense: 7x - 40

According to the question:

$\frac{5x - 40}{7x - 40}$ = $\frac{1}{2}$

Simplify the above expression to find their pocket money. 14x - 80 = 5x - 40

Change sides:

14x - 5x = -40 + 80

9x = 40

x = 4.444

Ravi's monthly pocket money:

= 5x

= 5 x 4.444

= 22.22

Raj's monthly pocket money:

= 7x

= 7 x 4.444

= 31.108

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