Question

Q1. Rohan earns Rs. 30,000 per month and spends Rs. 25,000 per month. Find the ratio of
a) Income to his expenditure
b) Saving to his income​

Answer 1

Step-by-step explanation:

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Answer 2

Answer :-

• Ratios :-

• a) Income to Expenditure = 7 : 5.
• b) Saving to Income = 1 : 6.

Given :-

• Rohan earns Rs 30000 per month and spends Rs 25000 per month.

To find :-

• The ratio of :-

• a) Income to his expenditure.
• b) Saving to his income.

Step-by-step explanation :-

• In this question, the earning and the expenditure of Rohan has been given to us. We have to find some ratios which include saving too, so that means, before finding out our answer, we have to find his saving per month.

Calculations :-

We know that :-

$\underline {\boxed{\mathfrak{Saving = Income - Expenditure.}}}$

Here,

• Income = Rs 30000.
• Saving = Rs 25000.

Hence,

$\rm{Saving = Rs \: 30000 - Rs \: 25000}$

$\overline{\boxed{\rm{Saving = Rs \: 5000.}}}$

Since we know Rohan's saving now, therefore we can find out the ratios.

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$\underline{\underline{\tt Answer \: a:-}}$

Here,

• Income = Rs 35000.
• Expenditure = Rs 25000.

So, ratio of income to expenditure :-

$\Rightarrow \sf \dfrac{35 \!\!\!\not0 \!\!\!\not0 \!\!\!\not0}{25 \!\!\!\not0 \!\!\!\not0 \!\!\!\not0}$

Cutting off the zeroes,

$\Rightarrow \sf \dfrac{ \cancel{35}}{ \cancel{25}}$

Reducing the numbers,

$\Rightarrow \sf \dfrac{7}{5}$

• Hence, the ratio is 7 : 5.

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$\underline{\underline{ \tt Answer \: b :-}}$

Here,

• Saving = Rs 5000.
• Income = Rs 30000.

So, ratio of saving to income :-

$\Rightarrow \sf\dfrac{5 \!\!\!\not0 \!\!\!\not0 \!\!\!\not0}{30 \!\!\!\not0 \!\!\!\not0 \!\!\!\not0}$

Cutting off the zeroes,

$\Rightarrow \sf\dfrac{ \cancel{5}}{ \cancel{30}}$

Reducing the numbers,

$\Rightarrow \sf \dfrac{1}{6}$

• Hence, the ratio is 1 : 6.

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