Quantitative Aptitude Practice Question and Answer
8Q: A train running at the speed of 40 km/hr crosses a signal pole in 9 seconds. Find the length of the train ? 1794 05b5cc76fe4d2b4197774ff4e
5b5cc76fe4d2b4197774ff4e- 190 mtsfalse
- 2150 mtsfalse
- 3120 mtsfalse
- 4100 mtstrue
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Answer : 4. "100 mts"
Explanation :
Answer: D) 100 mts Explanation: We know that Speed=distancetime distance= speed * time ⇒ d=40×518×9 d= 100 mts.
Q: Train K crosses a pole in 30 seconds and train L crosses the same pole in one minute and 20 seconds. The length of train K is three-fourths the length of train L. What is the ratio of the speed of train K to that of train L ? 1794 05b5cc6e0e4d2b4197774eb39
5b5cc6e0e4d2b4197774eb39- 11 : 3false
- 22 : 1true
- 33 : 1false
- 41 : 2false
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Answer : 2. "2 : 1"
Explanation :
Answer: B) 2 : 1 Explanation: Given that train K crosses a pole in 30 seconds and train L crosses the same pole in one minute and 15 seconds. Let the length of train K be Lk and that of train L be Ll given that Lk = 3/4 Ll As the train K and L crosses the pole in 30 seconds and 80 seconds respectively, => Speed of train K = sk = Lk/30 Speed of train L = sl = Ll/80 Lk = 3/4 Ll => sk = 3/4 Ll/(30) = Ll/40 Ratio of their speeds = sk : sl = Ll/40 : Ll/80 => 1/40 : 1/80 = 2 : 1
Q: A sequence of natural number 2,3,5,6,10. Such that no square and no cube occurs in the term. Find the 300th term of sequence ? 1794 05b5cc709e4d2b4197774f29e
5b5cc709e4d2b4197774f29e- 1322false
- 2319false
- 3321false
- 4320true
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Answer : 4. "320"
Explanation :
Answer: D) 320 Explanation: 1 to 300 = 300 numbers squares btwn 1 to 300 = 1,4,9,16,25,36,49.....289 i.e, total 17cubes = 1,8,27,64,125,216 i.e, 5 now 1 and 64 are common so total numbers that should be removed ( 17+5-2= 20 )total 20 term removed so 300th term would be 320
Q: In how many different ways can the letters of the word 'POVERTY' be arranged ? 1794 05b5cc6b4e4d2b4197774d4bb
5b5cc6b4e4d2b4197774d4bb- 12520false
- 25040true
- 31260false
- 4Nonefalse
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Answer : 2. "5040"
Explanation :
Answer: B) 5040 Explanation: The 7 letters word 'POVERTY' be arranged in 7P7 ways = 7! = 5040 ways.
Q: Train K crosses a stationary Train L in 50 seconds and a pole in 20 seconds with the same speed. The length of the Train K is 240 meters. What is the length of stationary Train L ? 1789 05b5cc72ce4d2b4197774f75f
5b5cc72ce4d2b4197774f75f- 160 mtsfalse
- 2120 mtsfalse
- 3240 mtsfalse
- 4360 mtstrue
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Answer : 4. "360 mts"
Explanation :
Answer: D) 360 mts Explanation: Speed of the Train K is given by s = d/t = 240/20 = 12 m/sDistance covered by Train K in 50 seconds = 12 x 50 = 600 mts.But it crosses Train L in 50 seconds Therefore, the length of the Train L is = 600 - 240 = 360 mts.
Q: 83% of 2350 = ? 1788 05b5cc6bce4d2b4197774d87c
5b5cc6bce4d2b4197774d87c- 11889.95false
- 21912.35false
- 31875.25false
- 41950.50true
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Answer : 4. "1950.50"
Explanation :
Answer: D) 1950.50 Explanation: 83% of 2350 = ? 83/100 x 2350 =8.3 x 235 =1950.50
Q: If a 36 cm thread is used to wrap a book, lengthwise twice and breadth wise once, what is the size of the book ? 1783 05b5cc711e4d2b4197774f3dc
5b5cc711e4d2b4197774f3dc- 1288 sq.cmtrue
- 2188 sq.cmfalse
- 3144 sq.cmfalse
- 4244 sq.cmfalse
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Answer : 1. "288 sq.cm"
Explanation :
Answer: A) 288 sq.cm Explanation: Length of the thread is 36 cms. length wise twice breath wise once then totally thrice.so 36/3 = 12.so length is 12 x 2 = 24 cmsbreath is 12 cmsArea of the book = length x breath = 24 x 12 = 288 sq.cm
Q: A,B,C,D,E,F,G and H are sitting around a circular table facing the centre but not necessarily in the same order. G sits third to the right of C. E is second to the right of G and 4th to the right of H. B is fourth to the right of C. D is not an immediate neighbour of E. A and C are immediate neighbours. Which of the following is/are correct ? 1781 05b5cc6c5e4d2b4197774dd46
5b5cc6c5e4d2b4197774dd46- 1F is third to the left of Bfalse
- 2F is second to the right of Btrue
- 3B is an immediate neighbour of Dfalse
- 4All of the abovefalse
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Answer : 2. "F is second to the right of B"
Explanation :
Answer: B) F is second to the right of B Explanation: From the given information, the circular arrangement is Here F is second to the right of B and the remaning all are wrong.