Percentage
- If 35% of A’s income is equal to 25% of B’s income, then the ratio of A’s income to B’s income is
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According to the question,
A × 35% = B × 25%⇒ A = 25 = 5 B 35 7 Correct Option: B
According to the question,
A × 35% = B × 25%⇒ A = 25 = 5 B 35 7
Hence , required ratio is 5 : 7 .
- The ratio of the number of boys and girls in a school is 3 : 2. If 20% of the boys and 25% of the girls are scholarship holders, the percentage of the school students who are not scholarship holders is
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Let the number of students in school be 100.
Boys ⇒ 60
Girls ⇒ 40
Students who do not hold scholarship :Boys ⇒ 60 × 80 = 48 100
Correct Option: B
Let the number of students in school be 100.
Boys ⇒ 60
Girls ⇒ 40
Students who do not hold scholarship :Boys ⇒ 60 × 80 = 48 100 Girls ⇒ 40 × 75 = 30 100
Required answer = 48 + 30 = 78∴ Required percentage = 78 × 100 = 78% 100
- The ratio between Ram’s age and Rahim’s age is 10 : 11. What is the age of Rahim in percentage of Ram’s age ?
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The ratio of Ram’s age and Rahim’s age = 10 : 11.
Let Ram’s age = 10k and Rahim’s age = 11k
According to question ,Correct Option: B
The ratio of Ram’s age and Rahim’s age = 10 : 11.
Let Ram’s age = 10k and Rahim’s age = 11k
According to question ,Required percent = 11 × 100 = 110% 10
- If 10% of p is 3 times 15% of q, then find p : q.
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According to the question,
p × 10 = 3 × q × 15 100 100
⇒ 10p = 45q
Correct Option: B
According to the question,
p × 10 = 3 × q × 15 100 100
⇒ 10p = 45q⇒ p = 45 = 9 q 10 2
- There is a ratio of 5: 4 between two numbers. If 40 % of the first number is 12, then what would be 50 % of the second number?
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Let the numbers be 5k and 4k respectively
According to the question,5k × 40 = 12 100
⇒ 2k = 12 ⇒ k = 6
Correct Option: A
Let the numbers be 5k and 4k respectively
According to the question,5k × 40 = 12 100
⇒ 2k = 12 ⇒ k = 6∴ 4k of 50% = 4 × 6 × 1 = 12 2