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Fractions and Decimals

Fractions and Decimals
If √5 = 2.24, then the value of 3√5 / 2√5 - 0.48 is ?

1.68
16.8
168
None of these

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Given expression = 3√5 / 2√5 - 0.48= (3 x 2.24) / (2 x 2.24) - 0.48= 6.72 / 4.48 - 0.48 = 6.72 / 4 = 1.68

Fractions and Decimals
Arrange the fractions in ascending order: 3/4, 5/8, 7/12, 13/16

7/12 < 5/8 < 3/4 < 13/16
5/8 < 7/12 < 13/16 < 3/
5/8 < 3/4 < 13/16 < 7/12
5/8 < 7/12 < 3/4 < 13/16

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

5/8 = .625,7/12 = .5833, 3/4 = .75,13/16 = .8125So order will be 7/12 < 5/8 < 3/4 < 13/16

Fractions and Decimals
? % of 10.8 =32.4

600
100
500
300

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let k % of 10.8=32.4 ⇒ (k x 10.8) / 100 = 32.4⇒ k = (32.4 x 100 )/10.8 = 300

Fractions and Decimals
Convert 0.34 in to a vulgar fraction ?

17/100
17/50
17/25
17

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

0.34 = 34/100 = 17/50

Fractions and Decimals
If 1.5x = 0.04y, then the value of ( (y - x) / (y+x) ) is :

73/77
61/63
71/74
65/67

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x / y  = 0.04 / 1.5 = 4 / 150 = 2 / 75.= > ( (y - x) / (y+x) ) = (1 - (x / y)) / ( 1 + ( x / y)) = (1 - 2/75) / (1 + 2/75) = 73/77.

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

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

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

0.125125...... = 0.125 =   125/999.

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