Fractions and Decimals 138.009 + 341.981 - 146.305 = 123.6 + ? 2.10085 21.0085 210.085 21.0085 2.10085 21.0085 210.085 21.0085 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 138.009 + 341.981 - 146.305 = 123.6 + zThen, z = (138.09+341.981) - (146.305+123.6)= 479.99 - 269.905 = 210.085
Fractions and Decimals A tailor has 37.5 metres of cloth and he has to make 8 pieces out of a metre of cloth. How many pieces can he make out this cloth ? 450 300 150 600 450 300 150 600 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Length of each piece = (1/8) m = 0.125 mRequired no of pieces = (37.5/0.125) = (375 * 100) / 125 = 300.
Fractions and Decimals \15.60 x 0.30=? 40.68 46.8 4.68 468 40.68 46.8 4.68 468 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 0.9 x 0.008=? None of these 0.00072 0.72 0.072 None of these 0.00072 0.72 0.072 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∵ 9 x 8=72∴ 0.09 x 0.008 = 0.00072 (Five place of decimal )
Fractions and Decimals When 0.36 is written in simplest form, the sum of the numerator and the denominator is : 12 34 45 23 12 34 45 23 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.36 = 36/100 = 9/25.Sum of the numerator and denominator is 9 + 25 = 34
Fractions and Decimals (.58 x .58 x .58 - .42 x .42 x .42 - 3 x .58 x .42 x .16) = ? 0.004096 4.096 0.4096 0.04096 0.004096 4.096 0.4096 0.04096 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Expression = (.53)³ - (.42)³- 3 x .58 x .42 x (.58-.42)= a³-b³ -3ab(a - b) = (a - b)³(where a = .58 and b=.42)= (.58 - .42 )³ = .16 x .16 x .16 = 0.004096
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