Percentage
- What percent of a day is 30 minutes?
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According to question ,
Required percent = 30 × 100 24 × 60 Correct Option: B
According to question ,
Required percent = 30 × 100 ≈ 2.083 24 × 60
- Due to 25% fall in the rate of eggs, one can buy 2 dozen eggs more than before by investing Rs.162. Then the original rate per dozen of the eggs is
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Let Initial price of eggs = Rs. m per dozen.
New price = Rs. 3m per dozen 4
According to the question,162 - 162 = 2 3m/4 m ⇒ 162 × 4 - 162 = 2 3x x
Correct Option: C
Let Initial price of eggs = Rs. m per dozen.
New price = Rs. 3m per dozen 4
According to the question,162 - 162 = 2 3m/4 m ⇒ 162 × 4 - 162 = 2 3x x ⇒ 216 - 162 = 2 m m ⇒ 54 = 2 m
⇒ 2m = 54
⇒ m = Rs. 27 per dozen
- 51% of a whole number is 714. 25% of that number is
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Let the whole number be p.
According to the question,
51% of p = 714⇒ p × 51 = 714 100 ⇒ p = 714 × 100 = 1400 51
Correct Option: A
Let the whole number be p.
According to the question,
51% of p = 714⇒ p × 51 = 714 100 ⇒ p = 714 × 100 = 1400 51 ∴ 25% of 1400 = 1400 × 25 = 350 100
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83 1 % of Rs. 90 is equal to 60% of ? 3
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Let the required amount be Rs. P.
According to the question,90 × 83 1 % = P × 60% 3 ⇒ 90 × 250 = P × 60 3
Correct Option: D
Let the required amount be Rs. P.
According to the question,90 × 83 1 % = P × 60% 3 ⇒ 90 × 250 = P × 60 3 ⇒ P = 30 × 250 = Rs. 125 60
Hence , required amount is Rs. 125 .
- 50% of a number when added to 50 is equal to the number. The number is
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Let the number be N.
According to the question,N + 50 + 50 = N 100 ⇒ N + 50 = N 2 ⇒ N - N = 50 2
Correct Option: C
Let the number be N.
According to the question,N + 50 + 50 = N 100 ⇒ N + 50 = N 2 ⇒ N - N = 50 2 ⇒ N = 50 2
⇒ N = 100
