Question discussion

Raman spends 80% of his income. If his income is increased by 25% and the expenditure increase by 10%, then what will be the percentage inc…

135732Medium 2 replies 2,830 views
26
Raman spends 80% of his income. If his income is increased by 25% and the expenditure increase by 10%, then what will be the percentage increase in his savings?
  • A17
  • B70
  • C77
  • D85
Answer not set
0
CCommunity
Let the income of Raman be Rs. 100

According to the problem statement

Amount to be spend by Raman can be given as

Amount spent = 100 × (80/100) = Rs. 80

Now the savings is 100 – 80 = Rs. 20

If income increased by 25%, new income will be

New income = 100 × (1 + 25/100) = Rs. 125

Expenditure increased by 10% can be given as

⇒ final expenditure = 80 × (1 + 10/100) = 80 × 1.1 = Rs. 88

Savings can be given as 125 – 88 = 37

Increase in saving is 37 – 20 = Rs. 17

⇒ percentage increase in savings can be given as = 17 × 100/20 = 85%

∴ The increase in savings is 85%
0
CCommunity
Let the income of Raman be Rs. 100

According to the problem statement

Amount to be spend by Raman can be given as

Amount spent = 100 × (80/100) = Rs. 80

Now the savings is 100 – 80 = Rs. 20

If income increased by 25%, new income will be

New income = 100 × (1 + 25/100) = Rs. 125

Expenditure increased by 10% can be given as

⇒ final expenditure = 80 × (1 + 10/100) = 80 × 1.1 = Rs. 88

Savings can be given as 125 – 88 = 37

Increase in saving is 37 – 20 = Rs. 17

⇒ percentage increase in savings can be given as = 17 × 100/20 = 85%

∴ The increase in savings is 85%