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Number System

Number System
The number of prime factors of (6)10×(7)17×(55)27

101
61
41
91

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

91

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

10
12
8
16

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
9 3/4 + 7 2/17 - 9 1/15 = ?

9 817/1020
7 719/1020
7 817/1020
9 719/1020

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Given sum = 9 + 3/4 + 7 + 2/17 - (9 + 1/15)= (9 + 7 - 9) + (3/4 + 2/17 - 1/15)= 7 + (765 + 120 - 68)/1020 = 7 817/1020

Number System
65 x 288 ÷ 52 = 1.8 x ?

210
180
200
190

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 65x288/52x1.8 = 200

Number System
If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order of their values, which one will be fourth?

11/13
7/9
1/3
5/4

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

5/4

Number System
Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is

8.484
8.584
8.784
8.684

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

8.484

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