Fractions and Decimals ( 20 + 8 x 0.5 ) / ( 20 - ? ) = 12 18 14 20 16 18 14 20 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let (20 + 8 x 0.5) / ( 20 - y) =12Then, 24 =12 x (20 - y)∴ 12y = 216⇒ y = 18
Fractions and Decimals (0.47 x 0.47 x 0.47 - 0.33 x 0.33 x 0.33) / (0.47 x 0.47 + 0.47 x 0.33 + 0.33 x 0.33) = ? 14 0.14 1.4 0.014 14 0.14 1.4 0.014 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given expression = [(0.47)³ - (0.33)³] / [(0.47)² + 0.47 x 0.33 + (0.33)²]= [a³ - b³ ] / [ a² + ab + b²] = [(a-b) (a² + ab + b²)] / [(a² + ab + b²)]= (a - b) = (0.47 - 0.33) = 0.14
Fractions and Decimals 25 / .0005 = ? 50000 5000 500 500000 50000 5000 500 500000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 25 / .0005= 250000 / 5= 50000
Fractions and Decimals If two-third of two-seventh of a number is 60, then two-fifteenth of that number is 71 42 34 56 71 42 34 56 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 0.002 * 0.5 = ? 0.001 0.01 0.1 1 0.001 0.01 0.1 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2 * 5 = 10.Sum of decimal places = 4..002 * .5 = 0.0010 = 0.001
Fractions and Decimals 5 x 0.25 x 6.301 x 0.00394=? 31.0324250 0.0310324250 0.310324250 3.10324250 31.0324250 0.0310324250 0.310324250 3.10324250 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here 5 x 25 x 6301 x 394=310324250Total decimal places = (2+3+5) = 10 ∴ 5 x 0.25 x 6.301 x 0.00394 = 0.0310324250
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