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Fractions and Decimals

Fractions and Decimals
What decimal fraction is 40 ml of a litre ?

.004
.0004
4
.04

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Required fraction = 40/1000= 4/100 = .04

Fractions and Decimals
What will be the vulgar fraction of 0.75 ?

2
1/4
3/4
1

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

0.75 = 75/100 = 3/4

Fractions and Decimals
(0.16)² - (0.12)² = ?

1.12
0.0112
11.2
.112

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = a² - b² = (a + b)(a - b)Hence, (0.16)² - (0.12)²= (0.16 + 0.12)(0.16 - 0.12)= 0.28 x 0.04 = 0.0112

Fractions and Decimals
450.271 + 369.422 ÷ 0.03 - 108.612 x 2.001 = ?

12532
15532
14532
13532

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 450.271 + (369.422 ÷ 0.03) - (108.612 x 2.001)= 450 + 369/0.03 - (109 x 2) = 450 + 12300 - 218 = 12532

Fractions and Decimals
3889 + 12.952 - ? = 3854.002

4795
47.95
4.795
479.5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let 3889 + 12.952 - x = 3854.002.Then x = (3889 + 12.952) - 3854.002  = 3901.952 - 3854.002  = 47.95.

Fractions and Decimals
0.008 x 0.3 = ? a) 0.24 b) 0.0240 c) 0.204 d) 0.0024

0.0024
0.24
0.024
0.00024

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Given expression is, 0.008 x 0.3The multiplication value without decimal point = 8 x 3 = 24Sum of the number of decimal places in the given numbers = 3 + 1 = 4Now, in the product, the decimal point is marked off to obtain as many places of decimal.Then the answer is 0.0024.

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