Aptitude Question Practice Question and Answer
8Q: A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one black ball is to be included in the draw? 1690 05c2c51929fd00135a4b20e3b
5c2c51929fd00135a4b20e3b- 132false
- 248false
- 396false
- 464true
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Answer : 4. "64"
Q: What is the unit digit in $$7^{105}$$? 3386 15d0b732a35df6b4ac0034a02
5d0b732a35df6b4ac0034a02- 11true
- 25false
- 37false
- 49false
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Answer : 1. "1"
Q: A man’s age before 2 years was 6 times of his son’s age. After 18 years, his age will be two times of his son’s age. Their respective ages are- 1032 05d0cac3b0cbb1019f5248247
5d0cac3b0cbb1019f5248247- 134 years, 9 yearsfalse
- 232 years, 7 yearstrue
- 336 years, 11 yearsfalse
- 432 years, 8 yearsfalse
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Answer : 2. "32 years, 7 years"
Q: In a class 60% of the students pass in English and 45% pass in Hindi. If 25% of them pass in both subjects, what percentage of the students fail in both the subjects? 2632 15b5cc601e4d2b4197774b440
5b5cc601e4d2b4197774b440- 120%true
- 225%false
- 330%false
- 415%false
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Answer : 1. "20%"
Explanation :
Answer: A) 20% Explanation: Percentage of students passed in English = 60% Percentage of students passed in Hindi = 45% Percentage of students passed in both subjects = 25% ATQ, Percentage of students passed in only English = 60 - 25 = 35% Percentage of students passed in only Hindi = 45 - 25 = 20% Therefore, Percentage of students failed = 100 - (35 + 25 + 20) = 100 - 80 = 20%.
Q: A cow was standing on a bridge, 5m away from the middle of the bridge. A train was coming towards the bridge from the ends nearest to the cow. Seeing this cow ran towards the the train and managed to escape when the train was 2m away from bridge. If it had run in the opposite direction, it would hit by the train 2m before the end of the bridge. What is the lenght of the bridge in meters assuming the speed of the train is 4 times that of cow ? 93316 35b5cc705e4d2b4197774f249
5b5cc705e4d2b4197774f249- 122 mtsfalse
- 228 mtsfalse
- 332 mtstrue
- 434 mtsfalse
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Answer : 3. "32 mts"
Explanation :
Answer: C) 32 mts Explanation: let 'b' be the Length of bridge from cow to the near end of the bridge and 'a' be the distance of the train from the bridge. 'x' be speed of cow => '4x' speed of trainThen the total length of the bridge 2b + 10.(a-2)/4x = b/x=> a-2 = 4b........(1)Now if it had run in opposite direction(a+2b+10-2)/4x = (b+10-2)/x=> a - 2b = 24......(2)Solving (1) and (2)b = 11 , Therefore length of the bridge is 2 x 11 + 10 = 32mts.
Q: How many 3-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed? 1274 05c2c4c4caea81766da94c915
5c2c4c4caea81766da94c915- 1220false
- 2520false
- 3720true
- 4450false
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Answer : 3. "720"
Q: In how many different ways can the letters of the word 'RUMOUR' be arranged? 1821 05c2c5405aea81766da94c954
5c2c5405aea81766da94c954- 1240false
- 2160false
- 3300false
- 4180true
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Answer : 4. "180"
Q: Ratio of current age of Prakash and his daughter is 3:1. This ratio after 5 years will be 7:3. What is the current age of Prakash’s daughter? 1581 05d0cacda23ee2e06e9eae26c
5d0cacda23ee2e06e9eae26c- 112 yearsfalse
- 230 yearsfalse
- 320 yearsfalse
- 410 yearstrue
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