Quantitative Aptitude Practice Question and Answer
8Q: There are 1650 students in a college. The difference between the number of boys and girls in the college is 400. What is the percentage of girls in the college ? 1760 05b5cc6c5e4d2b4197774dd1e
5b5cc6c5e4d2b4197774dd1e- 149false
- 234false
- 343false
- 438true
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Answer : 4. "38"
Explanation :
Answer: D) 38 Explanation: Let no. of boys be 'B' and no. of girls be 'G' Here from given data, B + G = 1650 .....(1) B - G = 400 .....(2) From (1) & (2), we get 2B = 2050 => B = 1025 => G = 1650 - 1025 = 625 Hence, the % of girls = 625 x 100/1650 => 38% (approx).
Q: A train is moving and crossing a man who is running on a platform of 100 m at a speed of 8 kmph in the direction of the train, in 9 sec. If the speed of the train is 74 kmph. Find the length of the train ? 1759 05b5cc6c3e4d2b4197774dc27
5b5cc6c3e4d2b4197774dc27- 1202 mtsfalse
- 2188 mtsfalse
- 3165 mtstrue
- 4156 mtsfalse
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Answer : 3. "165 mts"
Explanation :
Answer: C) 165 mts Explanation: Let the length of the train = L mts Relative speed of train and man = 74 - 8 = 66 kmph = 66 x 5/18 m/s => 66 x 5/18 = L/9 => L = 165 mts.
Q: Simplify 413 + 215 + 414 = ? 1759 05b5cc6afe4d2b4197774d235
5b5cc6afe4d2b4197774d235- 110 47/60true
- 211 45/73false
- 311 47/36false
- 410 35/48false
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Answer : 1. "10 47/60"
Explanation :
Answer: A) 10 47/60 Explanation: The given equation is in Mixed fraction. Now to solve this type of fractions, 413 + 215 + 414 =?? = 4 + 2 + 4 + 13 + 15 + 14 ? = 10 + 4760? = 104760
Q: Hemavathi gets 3 marks for each right sum and loses 2 marks for each wrong sum. He attempts 35 sums and obtains 60 marks. The number of sums attempted correctly is ? 1759 05b5cc73de4d2b4197774f90c
5b5cc73de4d2b4197774f90c- 123false
- 224false
- 325false
- 426true
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Answer : 4. "26"
Explanation :
Answer: D) 26 Explanation: Let, Hema attempted 'k' sum correctly, then k x 3 -2 x(35-k) = 605k = 130k = 26 so 26 correct sums.
Q: On dividing a number by 96, we get 271 as quotient and 0 as remainder. On dividing the same number by 95, what will be the remainder ? 1755 05b5cc6dde4d2b4197774e9ce
5b5cc6dde4d2b4197774e9ce- 187false
- 259false
- 392false
- 481true
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Answer : 4. "81"
Explanation :
Answer: D) 81 Explanation: Number = 271 x 96 + 0 = 26016 => 95) 26016 (273 25935 -------- 81 Required number = 81.
Q: A tank is filled in eight hours by three pipes K, L and M. Pipe K is twice as fast as pipe L, and L is twice as fast as M. How much time will pipe L alone take to fill the tank ? 1755 05b5cc6dfe4d2b4197774eaee
5b5cc6dfe4d2b4197774eaee- 132 hrsfalse
- 224 hrsfalse
- 328 hrstrue
- 426 hrsfalse
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Answer : 3. "28 hrs"
Explanation :
Answer: C) 28 hrs Explanation: 1/K + 1/L + 1/M = 1/8 (Given)Also given that K = 2L and L = 2M=> 1/2L + 1/L + 2/L = 1/8=> (1 + 2 + 4)/2L = 1/8=> 2L/7 = 8=> L = 28 hours.
Q: A number is 2 more than thrice the second number and 4 times the smaller number is 5 more than the greater number. What is greater number ? 1755 05b5cc6c9e4d2b4197774df9c
5b5cc6c9e4d2b4197774df9c- 17false
- 223true
- 39false
- 421false
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Answer : 2. "23"
Explanation :
Answer: B) 23 Explanation: Let the greater and smaller number be p and q respectively. 4q = p + 5 ------ (I) p = 3q+2 ------- (II) From equation (I) and (II) q = 7 p = 23
Q: What is the least number of squares tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad ? 1755 05b5cc723e4d2b4197774f65e
5b5cc723e4d2b4197774f65e- 1844false
- 2814true
- 3840false
- 4820false
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Answer : 2. "814"
Explanation :
Answer: B) 814 Explanation: Length of largest tile = H.C.F. of 1517 cm and 902 cm = 41 cm.Area of each tile = (41 x 41) sq.cm Required number of tiles =1517 x 902/(41 x 41) = 814.