Percentage
- Mita’s income is 25% more than that of Sita. What percent is Sita’s income less than that of Mita ?
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Here , A = 25%
We can find the required percentage with the help of given formula ,Required percentage = A × 100 100 + A Correct Option: D
Here , A = 25%
We can find the required percentage with the help of given formula ,Required percentage = A × 100 100 + A Required percentage = 25 × 100 = 20% 100 + 25
- If the total monthly income of 16 persons is 80,800 and the income of one of them is 120% of the average income, then his income is
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Let the required income be ₹ p.
Average monthly income = ₹ 80800 = ₹ 5050 16
∴ p = 120% of 5050Correct Option: B
Let the required income be ₹ p.
Average monthly income = ₹ 80800 = ₹ 5050 16 ∴ p = 120% of 5050 = ₹ 
120 × 5050 
= ₹ 6060 100
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If the monthly salary of an employee is increased by 2 2 % 3
he gets 72 rupees more. His monthly salary (in rupees) is
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Suppose monthly income = p
Then, 8 % of p = 72 3 ⇒ p × 8 = 72 300
Correct Option: C
Suppose monthly income = p
Then, 8 % of p = 72 3 ⇒ p × 8 = 72 300 ⇒ 72 × 300 = ₹ 2700 8
Hence , required answer is ₹ 2700 .
- Radha spends 40% of her salary on food, 20% on house rent, 10% on entertainment and 10% on conveyance. If her savings at the end of a month are ₹ 1500, then her salary per month (in ₹) is
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Radha’s total percentage expenditure = (40 + 20 + 10 + 10)% = 80%
Percentage savings = 100 – 80 = 20%
Now, 20% of her total salary = 1500Her total salary = 1500 × 100 = ₹ 7500 20
Second method to solve this question ,
Here, p = 40% , q = 20% , r = 10% , s = 10% and R = ₹ 1500Monthly income = 100 × R 100 - (p + q + r + s)
Correct Option: B
Radha’s total percentage expenditure = (40 + 20 + 10 + 10)% = 80%
Percentage savings = 100 – 80 = 20%
Now, 20% of her total salary = 1500Her total salary = 1500 × 100 = ₹ 7500 20
Second method to solve this question ,
Here, p = 40% , q = 20% , r = 10% , s = 10% and R = ₹ 1500Monthly income = 100 × R 100 - (p + q + r + s) Monthly income = 100 × 1500 100 - (40 + 20 + 10 + 10) Monthly income = 150000 100 - 80 Monthly income = 150000 = ₹ 7500 20
- A person gave 20% of his income to his elder son, 30% of the remaining to the younger son and 10% of the balance, he donated to a trust. He is left with ₹ 10080. His income was :
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Let income be ₹ 100
∴ Sum given to elder son = 20% of ₹ 100 = ₹ 20
Remaining Sum = Rs. 80
Sum given to younger son = 30% of ₹ 80 = ₹ 24
Remaining sum = Rs. (80 – 24) = Rs. 56
Sum given to the trust = 10% of ₹ 56 = ₹ 5.6
∴ Remaining sum = ₹ (56 – 5.6) = ₹ 50.4
∴ When 50.4 remains, total income = ₹ 100∴ When ₹ 10080 remains, total income = 100 × 10080 = ₹ 20000 50.4 ,
Here, R = ₹ 10080
p = 20%,
q = 24%
and r = 5.6%
Correct Option: D
Let income be ₹ 100
∴ Sum given to elder son = 20% of ₹ 100 = ₹ 20
Remaining Sum = Rs. 80
Sum given to younger son = 30% of ₹ 80 = ₹ 24
Remaining sum = Rs. (80 – 24) = Rs. 56
Sum given to the trust = 10% of ₹ 56 = ₹ 5.6
∴ Remaining sum = ₹ (56 – 5.6) = ₹ 50.4
∴ When 50.4 remains, total income = ₹ 100∴ When ₹ 10080 remains, total income = 100 × 10080 = ₹ 20000 50.4 ,
Here, R = ₹ 10080
p = 20%,
q = 24%
and r = 5.6%Monthly income = 100 × R 100 - (p + q + r) Monthly income = 100 × 10080 100 - (20 + 24 + 5.6) Monthly income = 1008000 100 - 49.6 Monthly income = 1008000 = 20,000 50.4
