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Fractions and Decimals

Fractions and Decimals
16.7 + 12.38 - ? =10.09

14.99
20.99
18.99
16.99

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let 16.7 + 12.38 - x =10.09∴ x = 16.7 + 12.38 - 10.09 = 18.99

Fractions and Decimals
[(0.05)² + (0.41)² +(0.073)²] / [(0.005)² + (0.041)² + (0.0073)²] = ?

100
100000
10000
1000

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Given expression = [(0.05)² + (0.41)² +(0.073)²] / [(0.005)² + (0.041)² + (0.0073)²] Which is in form of [(a² + b² + c²)] /[ (a/10)² + (b/10)² + (c/10)²] = 100 x (a² + b² + c²) / (a²+b²+c²) = 100

Fractions and Decimals
When 0.232323.... is converted into a fraction , then the result is

23/99
26/99
25/99
24/99

ANSWER DOWNLOAD EXAMIANS APP

Fractions and Decimals
[12 / (0.09 of 0.3)] x 2=?

800/9
8000/90
8000/9
800/90

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Given expression = ( 12/ 0.027) x 2= ( 12 / 0.027) x 2 = 24000/27 = 8000/9

Fractions and Decimals
If 1.5 x a = 0.04 x b then the value of (b - a) / ( b + a) is ?

None of these
73/770
730/77
73/77

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

a / b = 0.04 / 1.5 = 4 / 150 = 2 / 75∴ Given Exp. (b - a) / ( b + a)= (1- a/b ) / (1 + a/b) = (1- 2 / 75) / (1 + 2 / 75)= ( 73/75 ) / ( 77/75)= 73/77

Fractions and Decimals
The product of 3.5413 x 2.1 is

7.43673
743.673
74.3673
None of these

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

For the product of 3.5413 x 2.1Consider 35413 x 21 = 743673Total decimal places = 4 + 1∴ 3.5413 x 2.1=7.43673

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