Percentage
- A man spends 75% of his income. His income increases by 20% and his expenditure also increases by 10%. Find the percentage increase in his savings.
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Let man’s income be Rs. 100.
∴ Expenditure = Rs. 75
Savings = Rs. 25
Case–II,
Man’s income = Rs. 120Expenditure = 75 × 110 = Rs. 82.5 100
Savings = 120 – 82.5 = Rs. 37.5
Correct Option: B
Let man’s income be Rs. 100.
∴ Expenditure = Rs. 75
Savings = Rs. 25
Case–II,
Man’s income = Rs. 120Expenditure = 75 × 110 = Rs. 82.5 100
Savings = 120 – 82.5 = Rs. 37.5∴ Percentage increase = 37.5 - 25 × 100 25 = 12.5 × 100 = 50% 25
- Mukesh has twice as much money as Soham. Soham has 50% more money than Pankaj. If the average money with them is Rs.110, then Mukesh has
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Let Amount with Soham = Rs. p
∴ Amount with Mukesh = Rs. 2pAmount with Pankaj = 100p 150 = Rs. 2p 3
∴ Soham : Mukesh : Pankaj = p: 2p : 2p = 3 : 6 : 2 3
Sum of the terms of ratio = 3 + 6 + 2 = 11
Correct Option: C
Let Amount with Soham = Rs. p
∴ Amount with Mukesh = Rs. 2pAmount with Pankaj = 100p 150 = Rs. 2p 3
∴ Soham : Mukesh : Pankaj = p: 2p : 2p = 3 : 6 : 2 3
Sum of the terms of ratio = 3 + 6 + 2 = 11∴ Amount with Mukesh = Rs. 
6 × 330 
= Rs. 180 11
- Ram babu donated 3% of his income to a charity and deposited 12% of the rest in bank. If now he has Rs. 12804, then his income was :
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Let Ram Babu’s salary be Rs. p. Remaining amount after donations to charity
= Rs. 97p 100
After depositing money in the bank,Remaining amount = 97p × 88 100 100
Correct Option: B
Let Ram Babu’s salary be Rs. p. Remaining amount after donations to charity
= Rs. 97p 100
After depositing money in the bank,Remaining amount = 97p × 88 100 100 ∴ 97p × 88 = 12804 10000 ⇒ p = 12804 × 10000 = Rs. 15000 97 × 88
- A man spends 75% of his income. His income is increased by 20% and he increased his expenditure by 10%. His savings are increased by
-
View Hint View Answer Discuss in Forum
Let Man’s income = Rs. 100
∴ Expenditure = Rs. 75
Savings = Rs. 25
New income = Rs. 120Expenditure = 75 × 110 = Rs. 82.5 100
Correct Option: B
Let Man’s income = Rs. 100
∴ Expenditure = Rs. 75
Savings = Rs. 25
New income = Rs. 120Expenditure = 75 × 110 = Rs. 82.5 100 ∴ Required percentage = 37.5 - 25 × 100 25 Required percentage = 12.5 × 100 = 50% 25
- Two numbers are less than a third number by 30% and 37% respectively. How much percent is the second number less than the first ?
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Let the third number be 100.
⇒ First number = 70
Second number = 63Required percent = 70 - 63 × 100 70
Correct Option: A
Let the third number be 100.
⇒ First number = 70
Second number = 63Required percent = 70 - 63 × 100 70 Required percent = 7 × 100 = 10% 70
