Fractions and Decimals 0.8 x ? =0.0004 0.05 0.005 0.0005 0.00005 0.05 0.005 0.0005 0.00005 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 0.8y = 0.0004Then,y = 0.0004 / 0.8 = 0.004 / 8= .0005
Fractions and Decimals (0.29)2 - (0.01)2/0.3 = ? 0.30 0.32 0.34 0.28 0.30 0.32 0.34 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 If two-third of two-seventh of a number is 60, then two-fifteenth of that number is 56 42 34 71 56 42 34 71 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be X.Then 2/3 x 2/7 x X =60X = 60 x 7 x 3 / 4 = 315Then, 2/15 of 315 = 2/15 x 315 = 42.Hence the required number is 42
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 ? 150 450 300 600 150 450 300 600 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 Change 75/100 into decimal number. 0.75 750 75 7.5 0.75 750 75 7.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 75/100 = 0.75
Fractions and Decimals ? % of 10.8 =32.4 300 100 500 600 300 100 500 600 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
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