Aptitude Practice Question and Answer
8 Q: The average of 20 numbers is 32. If two numbers are 29 and 31, then what is the average of the remaining numbers (correct up to two decimals)?
2552 064abdcbb299b7896000b4560
64abdcbb299b7896000b4560- 131.24false
- 230.22false
- 334.44false
- 432.22true
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Answer : 4. "32.22"
Q: Ram and Shyam are travelling from point A to B, which are 60 km apart. Travelling at a certain speed ram takes one hour more than Shyam to reach point B. If Ram doubles his speed he will take 30 minutes less than Shyam to reach point B. At what speed was Ram driving from point A to B ?
2550 05fd1d89c02048c5f0a1cb51a
5fd1d89c02048c5f0a1cb51a- 115 kmphfalse
- 235 kmphfalse
- 330 kmphfalse
- 425 kmphfalse
- 520 kmphtrue
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Answer : 5. "20 kmph"
Q: Find the coordinates of the points where the graph 57x-19y=399 cuts the coordinate axes.
2550 064b5046b568e7ff594af6bc0
64b5046b568e7ff594af6bc0- 1x-axis at(-7,0) and y-axis at (0,-21)false
- 2x-axis at(-7,0) and y-axis at (0,21)false
- 3x-axis at (7,0) and y-axis at (0,-21)true
- 4x-axis at (7,0) and y-axis at (0,21)false
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Answer : 3. "x-axis at (7,0) and y-axis at (0,-21)"
Q: If A = 1300 and B = 1450, then B is approximately what percentage more than A?
2550 0642820259d18d2e8ae200937
642820259d18d2e8ae200937- 113.46%false
- 29.86%false
- 37.41%false
- 411.54%true
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Answer : 4. "11.54%"
Q: A passenger train leaves Calcutta at 4 PM and travels at the rate of 30 kilometres an hour. The mail train leaves Calcutta at 9 PM and travels, on a parallel line of rails, at the rate of 45 km an hour, when will the second train overtake the first?
2549 05fd1dbc64ae2934b44f61e76
5fd1dbc64ae2934b44f61e76- 110 hrs after the first train startfalse
- 212 hrs after the second train startsfalse
- 310 hrs after the second train startstrue
- 412 hrs after the first train startsfalse
- 5None of thesefalse
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Answer : 3. "10 hrs after the second train starts"
Q: A tourist spends daily as many rupees as the number of days of his total tour. If his total expenses were ₹ 361, then how many days did his tour last?
2549 05f210e410fc7110ad91fa115
5f210e410fc7110ad91fa115- 121 daysfalse
- 231 daysfalse
- 317 daysfalse
- 419 daystrue
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Answer : 4. "19 days "
Q: The base of a right prism is an equilateral triangle. If its height is one-fourth and each side of the base is tripled, then the ratio of the volumes of the old to the new prism is /
2547 05de4965e80801d48fb7e70e8
5de4965e80801d48fb7e70e8- 14 : 3false
- 21 : 4false
- 31 : 2false
- 44 : 9true
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Answer : 4. "4 : 9"
Q: If radius and height of a cylinder increase by 20% and15% respectively. then what is the % change in curved surface area? 2547 05b5cc6b9e4d2b4197774d69e
5b5cc6b9e4d2b4197774d69e- 141%false
- 238%true
- 333%false
- 444%false
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Answer : 2. "38%"
Explanation :
Answer: B) 38% Explanation: % Change in Curved Surface Area is given by %Change in radius + %Change in height + %Change in radius × %Change in height 100 ⇒+20 + 15 + 20×15100 = 38%