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Quantitative Aptitude

PERCENTAGE MCQs

Percentages

Total Questions : 2296 | Page 17 of 230 pages
Question 161. What will come in the place of (?) in the expression below :
x% of y is y% of (?)
  1.    x
  2.    100x
  3.    $$\frac{x}{100}$$
  4.    $$\frac{y}{100}$$
 Discuss Question
Answer: Option A. -> x
Question 162. In the expression xy2 , the value of both variables x and y are decreased by 20%. By this, the value of the expression is decreased by :
  1.    40%
  2.    48.8%
  3.    51.2%
  4.    80%
 Discuss Question
Answer: Option B. -> 48.8%
Question 163. The value of a machine depreciates at the rate of 12 percent per annum. It was purchased three years ago. Its present value is Rs. 29644.032. What was the purchase price of the machine ?
  1.    Rs. 38900
  2.    Rs. 39000
  3.    Rs. 43500
  4.    Rs. 48700
  5.    None of these
 Discuss Question
Answer: Option C. -> Rs. 43500
Question 164. From 5 litres of a 20% solution of alcohol in water, 2 litres of solution is taken out and 2 litres of water is added to it. Find the strength of alcohol in the new solution.
  1.    10%
  2.    12%
  3.    15%
  4.    18%
 Discuss Question
Answer: Option B. -> 12%
Question 165. A man ordered a length of rope by telephone from his nearest hardware shop. But when a worker in the shop brought the rope, he found that the man on the telephone had miswritten the order by interchange feet and inches. As a result of this, the length of rope received was only 30% of the length he had ordered. The length of the rope which the man ordered was between :
  1.    6 ft and 7 inches
  2.    7$$\frac{1}{2}$$ ft and 9 ft
  3.    9 ft and 2 inches
  4.    10$$\frac{1}{2}$$ ft and 12 ft
 Discuss Question
Answer: Option C. -> 9 ft and 2 inches
Question 166. In an examination, 35% candidates failed in one subject and 42% failed in another subject while 15% failed in both the subjects. If 2500 candidates appeared at the examination, how many passed in either subject but not in both ?
  1.    325
  2.    1175
  3.    2125
  4.    None of these
 Discuss Question
Answer: Option B. -> 1175
Question 167. 40% of 60% of $$\frac{3}{5}$$th of a number is 504. What is 25% of $$\frac{2}{5}$$th of that number ?
  1.    175
  2.    180
  3.    350
  4.    360
  5.    None of these
 Discuss Question
Answer: Option C. -> 350
Question 168. What percent of 88 is 33 ?
  1.    34.5%
  2.    35.5%
  3.    36.5%
  4.    37.5%
 Discuss Question
Answer: Option D. -> 37.5%
Question 169. Nupur invests Rs. 89856, which is 26% of her annual income, in mutual funds. What is her monthly income ?
  1.    Rs. 2398.50
  2.    Rs. 28800
  3.    Rs. 28990
  4.    Rs. 33606.25
  5.    None of these
 Discuss Question
Answer: Option B. -> Rs. 28800
Question 170. 14% of 14 + 28% of 28 + 92% of 96 - 15% of 85 = ?
  1.    8.37
  2.    85.37
  3.    89.37
  4.    None of these
 Discuss Question
Answer: Option B. -> 85.37

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