Quant Math Quantitative Aptitude 2 Questions and Answers

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Q161
10 % of 20 + 20 % of 10 =?
  • A 10 % of 20
  • B 20 % of 10
  • C 1 % of 200
  • D 2 % of 200
Answer: Option D
Q162
The half life of radioactive element is 5 years. The fraction of the radioactive substance that remains after 20 years is:
  • A l/2
  • B 1/4
  • C 1/8
  • D 1/16
Answer: Option D
Q163
The surface area of a cube is 216 sq. m. What is its volume?
  • A 100 cu m
  • B 216 cu m
  • C 480 cu m
  • D 512 cu m
Answer: Option B
Q164
A coin is tossed five times. What is the probability that Head (H) appears an odd number of times?
  • A 1/5
  • B 2/5
  • C 1/3
  • D 2/3
Answer: Option C
Q165
A freight train left, Delhi for Mumbai at an average speed of 40 km/hr. Two hours later, an express train left Delhi for Mumbai following the freight train on a parallel track at an average speed of 60 km/hr. How far from Delhi would the express train meet the freight train?
  • A 230km
  • B 240km
  • C 260 km
  • D 280 km
Answer: Option B
Q166
There are three tables containing two drawers each. One of the tables contains a gold coin in each of its drawers, another table contains a silver coin in each of its drawers while the third table, contains a gold in one drawer and a silver coin in the other .One of the drawers of a table is opened and found to contain a silver coin .What is the probability that its other drawer contains a gold coin?
  • A 1
  • B 0.75
  • C 0.5
  • D 0.25
Answer: Option C
Q167
Out of 120 musicians, 5% play all the three instruments- guitar, violin and tabla. 30 musicians among them can play any two and only two of the above instruments. The number of musicians who can play guitar alone is 40. What is the number of musicians who can play violin alone or tabla alone?
  • A 30
  • B 38
  • C 44
  • D 48
Answer: Option C
Q168
There are 4 horizontal and 4 vertical lines on a board. What is the maximum rectangles and squares that can be formed?
  • A 16
  • B 24
  • C 36
  • D 42
Answer: Option C
Q169
What is the number of integers greater than 7000 that can be formed with the digits 3: 5, 7, 8 and 9, no digit being repeated?
  • A 48
  • B 64
  • C 136
  • D 192
Answer: Option D
Q170
A cube is cut into 216 identical smaller cubes. In how many different ways can the smaller cubes be arranged to form cuboids of different surface areas if no two cubes are to be placed one above another?
  • A 6
  • B 8
  • C 14
  • D 16
Answer: Option A

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