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Fractions and Decimals

Fractions and Decimals
(0.29)2 - (0.01)2/0.3 = ?

0.34
0.30
0.32
0.28

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

a² - b² = (a + b)(a - b)Hence,(0.29)² - (0.01)²/0.3 = (0.29 + 0.01)(0.29 - 0.01)/0.3= (0.3 x 0.28)/0.3 = 0.28

Fractions and Decimals
9.99 x 9.9 x 9 ÷ 9.9 ÷ 0.3 = ?

4.44
2.22
1.11
3.33

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = (9.99 x 9.9 x 9)/(9.9 x 0.9 x 0.3) = 3.33

Fractions and Decimals
The product of 3.5413 x 2.1 is

743.673
74.3673
7.43673
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

Fractions and Decimals
The value of [0.1 x 0.1 x 0.1 + 0.02 x 0.02 x 0.02] / [0.2 x 0.2 x 0.2 + 0.04 x 0.04 x 0.04] is:

0.125
12.5
125
1.25

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Given expression=[(0.1)³ + (0.02)³] / 2³ [(0.1)³ + (0.02)³]=1/8= 0.125

Fractions and Decimals
617 + 6.017 + 0.617 + 6.0017 = ?

429.6357
329.6357
529.6357
629.6357

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

617.00 6.017 0.617 + 6.0017 -------- 629.6357 ---------

Fractions and Decimals
(.23 - .023) / ( .0023 / 23 ) = ?

2077
207
2770
2070

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Given expression = (.23 - .023) / ( .0023 / 23 ) = .207 / (.0023 / 23) = .207 / .0001=.2070 / .0001 = 2070

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