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Fractions and Decimals

Fractions and Decimals
( 20 + 8 x 0.5 ) / ( 20 - ? ) = 12

20
14
16
18

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let (20 + 8 x 0.5) / ( 20 - y) =12Then, 24 =12 x (20 - y)∴ 12y = 216⇒ y = 18

Fractions and Decimals
\15.60 x 0.30=?

4.68
40.68
468
46.8

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

∵ 1560 x 30 = 46800∴ 15.60 x 0.30 = 4.6800= 4.68 ( Four places of decimal )

Fractions and Decimals
The rational for the recurring decimal 0.125125......is

None of these
125/99
125/999
125/9

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

0.125125...... = 0.125 =   125/999.

Fractions and Decimals
[{(0.1)² - (0.01)²} / {0.0001 + 1 }] is equal to ?

75
100
50
25

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Given expression = (0.01 - 0.0001) / (0.00001 + 1)= (.0099 / .0001) + 1 = 99 + 1= 100

Fractions and Decimals
( 17.28 / ? ) / (3.6 x 0.2) = 200

0.11
0.13
0.10
0.12

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let (17.28 / y) / (3.6 x 0.2) = 200Then,17.28 / y = 200 x 3.6 x 0.2∴ y = 17.28 / (200 x 3.6 x 0.2) = 1728 / 200 x 36 x 2 = 0.12.

Fractions and Decimals
Which of the following fraction are in ascending order ?

11/14, 16/19, 17/22
16/19, 17/22, 11/14
16/19, 11/14, 17/22
17/22, 11/14, 16/19

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

16/19 =0.842,11/14 =0.785 and 17/22 = 0.772∴ 0.772 < 0.785 < 0.842or 17/22 < 11/14 < 16/19.

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