Numbers - Aptitude Questions and Answers - Online Test Part 1

Numbers Online Test Part - 1

Exam Name - Quantitative Aptitude
Subject Name - Numbers
Exam Type - Multiple Choice Questions
No Of Questions - 10

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Question - 1:A number when divided by the sum of 555 and 445 gives two times their difference the quotient and 30 as the remainder. The number is?

1. 1220
2. 1250
3. 22030
4. 220030

Show/Hide Answer

Answer = D - 220030
Explanation: Required number = (555+445)×2×110+30
220000+30
‹=›220030.

Question - 2:Which one of the following is not a prime number? ?

1. 31
2. 61
3. 91
4. 71

Show/Hide Answer

Answer = C - 91
Explanation: 91 is divisible by 7. So, it is not a prime number.

Question - 3:The difference between the place values of 7 in the numeral 574873 is:?

1. 69930
2. 59930
3. 59930
4. 69305

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Answer = A - 69930
Explanation: No Explanation

Question - 4:5358 x 51 = ??

1. 273258
2. 273268
3. 273348
4. 273358

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Answer = A - 273258
Explanation: No Explanation

Question - 5:1014 x 986 = (....?....) ?

1. 998904
2. 999804
3. 998814
4. 998804

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Answer = B - 999804
Explanation: No Explanation

Question - 6:Which of the following number is divisible by 24 ? ?

1. 35718
2. 63810
3. 537804
4. 3125736

Show/Hide Answer

Answer = D - 3125736
Explanation: 24 = 3 x8, where 3 and 8 co-prime.

Clearly, 35718 is not divisible by 8, as 718 is not divisible by 8.

Similarly, 63810 is not divisible by 8 and 537804 is not divisible by 8.

Cibsuder oart (d).

Sum of digits = (3 + 1 + 2 + 5 + 7 + 3 + 6) = 27, which is divisible by 3.

Also, 736 is divisible by 8.

3125736 is divisible by (3 x 8), i.e., 24.

Question - 7:Which oe of the following is a prime number ? ?

1. 161
2. 221
3. 373
4. 437

Show/Hide Answer

Answer = C - 373
Explanation: No Explanation

Question - 8:On dividing a number by 5, we get 3 as remainder. What will the remainder when the square of the this number is divided by 5 ? ?

1. 0
2. 1
3. 2
4. 4

Show/Hide Answer

Answer = D - 4
Explanation: No Explanation

Question - 9:There is one number which is formed by writing one digit 6 times (e.g. 111111, 444444 etc). Such number is always divisible by : ?

1. 3
2. 2
3. 7
4. 6

Show/Hide Answer

Answer = B - 2
Explanation: No Explanation

Question - 10:On dividing a number by 357, we get 39 as remainder. On dividing the same number 17, what will be the remainder ? ?

1. 0
2. 3
3. 5
4. 11

Show/Hide Answer

Answer = C - 5
Explanation: Let x be the number and y be the quotient. Then,

x = 357 x y + 39

= (17 x 21 x y) + (17 x 2) + 5

= 17 x (21y + 2) + 5)

Required remainder = 5.

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