Aptitude Practice Question and Answer
8 Q: A number when divided by 6 leaves remainder 3. When the square of the same number is divided by 6, the remainder is :
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Answer : 4. "3"
Explanation :
The remainder will be same.
On dividing 9 by 6, remainder = 3
On dividing 81 by 6, remainder = 3
Q: A number when divided by 119, leaves a remainder of 19. If it is divided by 17, it will leave a remainder of:
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614c68834d59797c590e504e- 119false
- 27false
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Answer : 4. "2 "
Explanation :
On dividing the given number by 119, let k be the quotient and 19 as remainder.
Then, number = 119k + 19
= 17 × 7k + 17 × 1 + 2
= 17 (7k + 1) + 2
Hence, the given number when divided by 17, gives (7k + 1) as quotient and 2 as remainder.
Q: How many natural numbers divisible by 7 are there between 3 and 200?
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5ee845d3a08a50198d8d094c- 128true
- 229false
- 327false
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Answer : 1. "28 "
Explanation :
Number just greater than 3 which is divisible by 7 = 7
Number just smaller than 200 which is divisible by 7 = 196
Here, a = 7, an = 196,
d = 7, n = 8
an = a + (n –1)d
⇒196 = 7 + (n – 1) × 7
⇒
⇒ n = 27 + 1 = 28
Note : We can find the answer after dividing 200 by 7. The quotient is our answer.
Q: Each member of a Picnic party contributed twice as many rupees as the total collection was Rs.3042. The number of members present in the party was
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5ec4a257980ff60a66c06591- 12false
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Answer : 4. "39"
Explanation :
Let the required number of persons be x.
According to the question, 2x2 = 3042
Or
or
Q: A number when divided by 296 gives a remainder 75. When the same number is divided by 37 the remainder will be:
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5ee8426479b5ea388bec0116- 18false
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Answer : 2. "1 "
Explanation :
Let number (dividend) be X.
∴ X = 296 × Q + 75 where Q is the quotient and can have the values 1, 2, 3 etc.
= 37 × 8 × Q + 37 × 2 + 1
= 37 (8Q + 2) + 1
Thus we see that the remainder is 1.
[Remark : When the second divisor is a factor of the first divisor, the second remainder is obtained by dividing the first remainder by the second divisor.
Hence, divide 75 by 37, the remainder is 1].
Q: When 1062, 1134 and 1182 are divided by the greatest number .x, the remainder in each case is y. What is the value of (x − y)?
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64ba4fa5c3da05b2213e134d- 117false
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Answer : 2. "18"
Explanation :
The value of (x-y) will be 18
Q: Two positive numbers differ by 1280. When the greater number is divided by the smaller number, the quotient is 7 and the remainder is 50. The greater number is:
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64bfb2f4e2108a7239492d0d- 11558false
- 21458false
- 31585false
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Answer : 4. "1485"
Explanation :
Given :- Two positive numbers differ by 1280
When the greater number is divided by the smaller number The quotient is 7 and the remainder is 50
Concept :- Dividend = Quotient × divisor + remainder
Calculation :- Let greater number = a and Smaller number = b From question, ⇒ a - b = 1280 ....(1) Again from question, ⇒ a = 7b + 50 ....(2)
Put the value of a from equation (2) into equation (1) ⇒ 7b + 50 - b = 1280 ⇒ 6b = 1280 - 50 ⇒ 6b = 1230 ⇒ b = (1230/6) ⇒ b = 205
Put the value of b in equation (1) ⇒ a - 205 = 1280 ⇒ a = 1280 + 205 ⇒ a = 1485 ⇒ Greater number = 1485 ∴ Greater number is 1485
Q: One-fourth of a tank holds135 litres of water. What part of the tank is full if contains 180 litres of water?
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650832b16e0e55b91dcd1a53- 1$$1\over 3$$true
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- 4$$2\over 3$$false
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