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Number System

Number System
(95.6x 910.3) ÷ 92.56256 = 9?

14.44
13.34
12.24
15.54

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

13.34

Number System
In how many ways can 5 boys be chosen from 6 boys and 4 girls so as to include exactly one girl ?

60
54
56
58

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

One girl can be chosen in 4C1 = 4 ways and 4 boys can be chosen in 6C4 = 15 ways ∴ Total number of ways = 4 x 15 = 60 ways.

Number System
Two numbers are in the ratio 3:5. If 9 be subtracted from each, they are in the ratio of 9:17. The first number is:

30
27
36
18

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(3x-9):(5x-9) = 9:17 x = 12 => 3x = 36

Number System
ind the number, difference between number and its 3/5 is 50

125
120
123
124

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number = x,Then, x-(3/5)x = 50,=> (2/5)x = 50 => 2x = 50*5,=> x = 125

Number System
What is 432 times 119 ?

50408
52408
53408
51408

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

No. 432 x 119 = 51408

Number System
The square root of 0.0081 is:

0.9
0.91
0.009
0.09

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

0.09

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