Basic Simplification Quiz Set 019

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Question 1

What is 172 + 153 - 1 × 1185 ÷ 395?

 A

322.

 B

323.

 C

321.

 D

324.

Soln.
Ans: a

We have by bodmas 172 + 153 - 1 × 1185 ÷ 395 = 172 + 153 - (1 × (1185 ÷ 395)) = (172 + 153) - (1 × (3)) = (172 + 153) - 3 = 325 - 3 = 322.


Question 2

The value of x for which the value of |2x - 6| is minimum is?

 A

3.

 B

5.

 C

9.

 D

7.

Soln.
Ans: a

The minimum value of |2x - 6| is 0. So 2x - 6 = 0, when x = 3.


Question 3

A bag contains equal number of coins each of Rs. 1, 5 and 10. What is the total number of coins in the bag, if the total money is Rs. 416?

 A

78.

 B

26.

 C

76.

 D

82.

Soln.
Ans: a

Let there be N coins of each denomination. Then N × (1 + 5 + 10) = 416, which gives N = $416/16$, and 3N = 3 × $416/16$ = 78.


Question 4

The maximum value of the expression 63 - |x - 7| is?

 A

63.

 B

65.

 C

61.

 D

67.

Soln.
Ans: a

The maximum occurs when the value of |x - 7| is the lowest, which is 0, so the maximum value is 63.


Question 5

What is 469 × 25?

 A

11725.

 B

11730.

 C

11720.

 D

11735.

Soln.
Ans: a

This is a multiplication by a power of 5. The best way is to observe that 25 = 52. There are 2 powers of 5. So append 2 zeroes and divide by 22, like this: $46900/4$ = 11725.


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This Blog Post/Article "Basic Simplification Quiz Set 019" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2019-08-18.

Posted by Parveen(Hoven),
Aptitude Trainer


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