Quantitative Aptitude Quiz On - Problems on Numbers - Online Test Part - 7

Problems on Numbers Online Test Part - 7

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

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Question - 1:In a two-digit, if it is known that its unit's digit exceeds its ten's digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is:?

1. 24
2. 26
3. 42
4. 46

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Answer = A - 24
Explanation: No Explanation

Question - 2:243 has been divided into three parts such that half of the first part, one-third of the second part and one-fourth of the third part are equal The largest part is : ?

1. 74
2. 86
3. 92
4. 108

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Answer = D - 108
Explanation: No Explanation

Question - 3:The sum of two number is 25 and their difference is 13. Find their product. ?

1. 104
2. 114
3. 315
4. 325

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Answer = B - 114
Explanation: No Explanation

Question - 4:How many of the following numbers are divisible by 132 ?
264, 396, 462, 792, 968, 2178, 5184, 6336 ?

1. 4
2. 5
3. 6
4. 7

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Answer = A - 4
Explanation: No Explanation

Question - 5:A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? ?

1. 3.5
2. 6
3. 8
4. None of these

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Answer = C - 8
Explanation: No Explanation

Question - 6:If one-third of one-fourth of a number is 15, then three-tenth of that number is: ?

1. 35
2. 36
3. 45
4. 54

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Answer = D - 54
Explanation: No Explanation

Question - 7:If doubling a number and adding 20 to the result gives the same answer as multiplying the number by 8 and taking away 4 from the product, the number is ?

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

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Answer = c - 4
Explanation: Let the number be x.
Then, 2x + 20 = 8x - 4
‹=› 6x= 24
‹=› x = 4.

Question - 8:The product of two numbers is 120 and the sum of their squares is 289. The sum of the number is: ?

1. 20
2. 23
3. 169
4. None of these

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Answer = B - 23
Explanation: No Explanation

Question - 9:The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ? ?

1. 4
2. 6
3. 8
4. 16

Show/Hide Answer

Answer = C - 8
Explanation: Since the number is greater than the number obtained on reversing the digits, so the ten's digit is greater than the unit's digit.
Let ten's and unit's digits be 2x and x respectively.
Then, (10 x 2x + x) - (10x + 2x) = 36
‹=› 9x = 36
x = 4.
Required difference = (2x + x) - (2x - x)
‹=›2x = 8.

Question - 10:If one third of one fourth of number is 15, then three tenth of number is?

1. 34
2. 44
3. 54
4. 64

Show/Hide Answer

Answer = C - 54
Explanation: No Explanation

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