Quantitative Aptitude Practice Question and Answer
8Q: Find the odd number out of the following number series? 2 4 8 11.5 18.25 28.375 5844 05b5cc68be4d2b4197774c380
5b5cc68be4d2b4197774c380- 118.25false
- 228.375false
- 311.5false
- 48true
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Answer : 4. "8"
Explanation :
Answer: D) 8 Explanation: Given number series follows a pattern that, 2 2 x 1.5 + 1 = 4 4 x 1.5 + 1 = 7 (not equal to 8) 7 x 1.5 + 1 = 11.5 11.5 x 1.5 + 1 = 18.25 18.25 x 1.5 + 1 = 28.375 Hence, the odd number in the given number series is 8.
Q: What is the number of digits in 333? Given that log3 = 0.47712? 5829 05b5cc7d0e4d2b41977751209
5b5cc7d0e4d2b41977751209- 112false
- 213true
- 314false
- 415false
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Answer : 2. "13"
Explanation :
Answer: B) 13 Explanation: Let Let x=333 = 333 Then, logx = 33 log3 = 27 x 0.47712 = 12.88224 Since the characteristic in the resultant value of log x is 12 ∴The number of digits in x is (12 + 1) = 13 Hence the required number of digits in 333is 13.
Q: A sum of Rs. 427 is to be divided among A, B and C in such a way that 3 times A’s share, 4 times B’s share and 7 times C’s share are all equal. The share of C is ? 5825 05b5cc72ce4d2b4197774f792
5b5cc72ce4d2b4197774f792- 164false
- 276false
- 384true
- 498false
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Answer : 3. "84"
Explanation :
Answer: C) 84 Explanation: Given total sum = Rs. 427And given that 3 times A’s share, 4 times B’s share and 7 times C’s share are all equal.=> 3A = 4B = 7CBut given=> A + B + C = 427Now express A and B in terms of C i.e=> (7C/3) + (7C/4) + C = 427=> C = 84
Q: A group of 10 representatives is to be selected out of 12 seniors and 10 juniors. In how many different ways can the group be selected if it should have at least one senior ? 5807 05b5cc6eee4d2b4197774eed7
5b5cc6eee4d2b4197774eed7- 1²²C₁₀ + 1false
- 2²²C₉ + ¹⁰C₁false
- 3²²C₁₀false
- 4²²C₁₀ - 1true
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Answer : 4. "²²C₁₀ - 1"
Explanation :
Answer: D) ²²C₁₀ - 1 Explanation: The total number of ways of forming the group of ten representatives is ²²C₁₀. The total number of ways of forming the group that consists of no seniors is ¹⁰C₁₀ = 1 way The required number of ways = ²²C₁₀ - 1
Q: If today is Saturday, what will be the day 350 days from now ? 5796 05b5cc6dbe4d2b4197774e8eb
5b5cc6dbe4d2b4197774e8eb- 1Saturdaytrue
- 2Fridayfalse
- 3Sundayfalse
- 4Mondayfalse
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Answer : 1. "Saturday"
Explanation :
Answer: A) Saturday Explanation: 350 days, 350/7 = 50, no odd days, so it will be a Saturday.
Q: Two trains are moving in the same direction at 72 kmph and 36 kmph. The faster train crosses a girl sitting at window seat in the slower train in 32 seconds. Find the length of the faster train ? 5687 05b5cc6d8e4d2b4197774e769
5b5cc6d8e4d2b4197774e769- 1170 mfalse
- 2100 mfalse
- 3270 mfalse
- 4320 mtrue
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Answer : 4. "320 m"
Explanation :
Answer: D) 320 m Explanation: Relative speed = (72 - 36) x 5/18 = 2 x 5 = 10 mps.Distance covered in 32 sec = 32 x 10 = 320 m. The length of the faster train = 320 m.
Q: Find the unit digit of 4198 + 612345 + 34866 + 2411 + 1. 5678 05b5cc77fe4d2b41977750179
5b5cc77fe4d2b41977750179- 13false
- 22false
- 31true
- 40false
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Answer : 3. "1"
Explanation :
Answer: C) 1 Explanation: Given that, 4198+612345+34866+2411+1 Now Power Cycle of 4 is 4, 6 6 is 6 8 is 8, 4, 2, 6 1 is 1 4198- 198 is even number , So the unit digit value is 6 612345 - It is always 6 34866- 66/4 the remainder is 2 , So the second value is 4 2411- 11 is odd number, So the unit digit value is 4 1 - It is always 1 Total = 21 Therefore, The unit digit is 1
Q: A shopkeeper sells a TV set on discount of 8% of printed price and gains 25%. If print price was Rs 20000 then, what was the cost price? 5675 05d133cfcd2441c3c5ff90a40
5d133cfcd2441c3c5ff90a40- 1Rs 13800false
- 2Rs 14720true
- 3Rs 14800false
- 4Rs 13720false
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