Basic Simplification Quiz Set 001

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Question 1

What is 146 × 9?

 A

1314.

 B

1323.

 C

1305.

 D

1332.

Soln.
Ans: a

This is a multiplication by 9. Proceed like this: 146 × 9 = 146 × (10 - 1) = 146 × 10 - 146 = 1460 - 146 = 1314. Sometimes, the options can be ruled out by examining the units places, but for simpler cases these shortcuts will help you save time overall.


Question 2

The sum of solutions of |x - 3| = 88 is?

 A

6.

 B

8.

 C

4.

 D

10.

Soln.
Ans: a

x - 3 = +88, so x = 88 + 3 = 91 is one solution, and we can also have x - 3 = -88, which gives x = 3 - 88 = -85. The sum is 91 + (-85) = 6.


Question 3

What is 122 + 345 - 1 × 1116 ÷ 372?

 A

464.

 B

465.

 C

463.

 D

466.

Soln.
Ans: a

We have by bodmas 122 + 345 - 1 × 1116 ÷ 372 = 122 + 345 - (1 × (1116 ÷ 372)) = (122 + 345) - (1 × (3)) = (122 + 345) - 3 = 467 - 3 = 464.


Question 4

The maximum value of the expression 68 - |x - 7| is?

 A

68.

 B

70.

 C

66.

 D

72.

Soln.
Ans: a

The maximum occurs when the value of |x - 7| is the lowest, which is 0, so the maximum value is 68.


Question 5

Cost of 1 kg of a metal is Rs. $21{1/2}$. What is the cost of ${42/43}$ kg?

 A

Rs. 21.

 B

Rs. 22.

 C

Rs. 20.

 D

Rs. 23.

Soln.
Ans: a

We have to find $21{1/2}$ × ${42/43}$, which can be written as ${43/2}$ × ${42/43}$, which simplifies to 42/2 = Rs. 21.


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This Blog Post/Article "Basic Simplification Quiz Set 001" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2017-08-12.

Posted by Parveen(Hoven),
Aptitude Trainer


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