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Number System

Number System
A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number?

42
84
21
24

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

2/3 x = 28 => x = 4242 * 1/2 = 21

Number System
√360 - 225 x 2 + 379 = ?

17
18
20
19

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = √360 - 225 x 2 + 379 = √360 - 450 + 379 = √289= 17

Number System
(12.04 x 7.5 + 0.8 x 45) ÷ 3 = ?

54.7
42.1
45
42.6

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(90.3 + 36) ÷ 3 = 126.3/3 = 42.1

Number System
In how many different ways can the letters of the word TEST' be arranged ?

10
8
16
12

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The word TEST consists of 4 letters in which T comes twice ∴ Number of arrangements= 4!/2! = 4 x 3 x 2 x 1/2 x 1 = 12

Number System
When 102 is reduced from a number, the number gets reduced by 88%. What is that number ?

850
650
550
750

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

850

Number System
217 * 217 + 183 * 183 = ?

80698
79698
81268
80578

ANSWER DOWNLOAD EXAMIANS APP
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