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Quantitative Aptitude

PERCENTAGE MCQs

Percentages

Total Questions : 2296 | Page 23 of 230 pages
Question 221. The percentage of metals in a mine of lead ore is 60%. Now the percentage of silver is $$\frac{3}{4}$$% of metals and the rest is lead. If the mass of ore extracted from this mine is 8000 kg, the mass (in kg.) of lead is :
  1.    4763
  2.    4764
  3.    4762
  4.    4761
 Discuss Question
Answer: Option B. -> 4764
Question 222. If 120 is 20% of a number, then 120% of that number will be :
  1.    20
  2.    120
  3.    480
  4.    720
 Discuss Question
Answer: Option D. -> 720
Question 223. If radius of a circle is increased by 5%, then the increase in it's area is :
  1.    10.25%
  2.    5.75%
  3.    10%
  4.    5%
 Discuss Question
Answer: Option A. -> 10.25%
Question 224. 498 is 17% less than a number then the number is :
  1.    610
  2.    580
  3.    600
  4.    620
 Discuss Question
Answer: Option C. -> 600
Question 225. If 60% of A's income is equal to 75% of B's income, then B's income is equal to x% of A's income. The value of x is :
  1.    70
  2.    60
  3.    80
  4.    90
 Discuss Question
Answer: Option C. -> 80
Question 226. What is 20% of 25% of 300 ?
  1.    150
  2.    60
  3.    45
  4.    15
 Discuss Question
Answer: Option D. -> 15
Question 227. What percentage of 3.6 kg is 72 gms. ?
  1.    32%
  2.    22%
  3.    12%
  4.    2%
 Discuss Question
Answer: Option D. -> 2%
Question 228. 0.001 is equivalent to :
  1.    10%
  2.    1%
  3.    0.01%
  4.    0.1%
 Discuss Question
Answer: Option D. -> 0.1%
Question 229. The tax imposed on an article is decreased by 10% and its consumption is increased by 10%. Find the percentage change in revenue from it.
  1.    10% increase
  2.    2% decrease
  3.    1% decrease
  4.    11% increase
 Discuss Question
Answer: Option C. -> 1% decrease
Question 230. The length of a rectangle is increased by 10% and breadth decreased by 10% Then the area of the new rectangle is :
  1.    Neither decreased nor increased
  2.    Increased by 1%
  3.    Decreased by 1%
  4.    Decreased 10%
 Discuss Question
Answer: Option C. -> Decreased by 1%

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