Aptitude Practice Question and Answer
8 Q: The average of 30 numbers is 40 and that of the other 40 numbers is 30. The average of all the numbers is-
353 06540b7da27398ecb26d33cc9
6540b7da27398ecb26d33cc9- 135false
- 234false
- 3$$34{2\over7}$$true
- 434.5false
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Answer : 3. "$$34{2\over7}$$ "
Explanation :
Q: There are two groups A and B of a class, consisting of 42 and 28 students respectively. If the average weight of group A is 25 kg and that of group B is 40 kg, find the average weight of the whole class.
374 06401b25a86fd4161466cd736
6401b25a86fd4161466cd736- 169 kgfalse
- 231 kgtrue
- 370 kgfalse
- 430 kgfalse
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Answer : 2. "31 kg "
Explanation :
Q: The average of 30 numbers is 15. The average of the first 18 numbers is 10 and that of the next 11 numbers is 20. The last number is
690 062ff8151047feb0792713d97
62ff8151047feb0792713d97- 156false
- 252false
- 360false
- 450true
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Answer : 4. "50"
Explanation :
Q: Out of 20 boys, 6 are each of 1 m 15 cm height, 8 are of 1 m 10 cm and rest of 1 m 12 cm. The average height of all of them is
364 0653f829edfda58cb3c93bbb2
653f829edfda58cb3c93bbb2- 11 m 12.1 cmtrue
- 21 m 21.1 cmfalse
- 31 m 21 cmfalse
- 41 m 12 cmfalse
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Answer : 1. "1 m 12.1 cm"
Explanation :
Q: Six tables and twelve chairs were bought for ₹ 7,800. If the average price of a table is ₹750, then the average price of a chair would be
285 0653f82148e6628cb6daea96e
653f82148e6628cb6daea96e- 1₹ 250false
- 2₹ 275true
- 3₹ 150false
- 4₹ 175false
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Answer : 2. "₹ 275"
Explanation :
Q: 18% of which number is equal to 12% of 75 ? 1692 05cda8bd9daf80a0820f0938b
5cda8bd9daf80a0820f0938b- 150true
- 2100false
- 32false
- 4$${3\over 2} $$false
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Answer : 1. "50"
Explanation :
Q: if 20% of A = 50% of B, then what percentage of A is B?
276 0653f7f0ac298bbcb027ef17a
653f7f0ac298bbcb027ef17a- 130%false
- 240%true
- 325%false
- 415%false
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Answer : 2. "40%"
Explanation :
Q: If 50% of P = 25% of Q, then P = x% of Q. Find x. 3393 05cda8b2440678f4146def8bb
5cda8b2440678f4146def8bb- 10.5false
- 20.5false
- 350true
- 40.005false
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Answer : 3. " 50"
Explanation :
