Fractions and Decimals (1.04 x 1.04 + 1.04 x 0.04 + 0.04 x 0.04) / (1.04 x 1.04 x 1.04 - 0.04 x 0.04 x 0.04) = ? 2 0 1 3 2 0 1 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Expression = (1.04)² + 1.04 x 0.04 + (0.04)² / (1.04)³ - (0.04)³= (a² + ab + b²) / (a³ - b³) = (a² + ab + b²) / [(a-b) (a² + ab + b²)]= 1 / (a - b)= 1/ (1.04 - 0.04) = 1
Fractions and Decimals 9.724 ÷ 100 = ? 0.09724 0.9724 None of these 9.724 0.09724 0.9724 None of these 9.724 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9.724 ÷ 100 = 0.09724Shift decimal two palaces to the left. i.e 100
Fractions and Decimals 5 x 0.25 x 6.301 x 0.00394=? 31.0324250 0.0310324250 3.10324250 0.310324250 31.0324250 0.0310324250 3.10324250 0.310324250 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
Fractions and Decimals Which of the following fractions is greater than 3 /4 and less than 5 / 6 ? 3/4 1/2 4/5 5/6 3/4 1/2 4/5 5/6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 /4 = 0.75, 5/6 = 0.833,1/2 = .5,2/3 = 0.66, 4/5 = 0.8,9/10 = 0.9.clearly 0.8 lies between 0.75 and .833.4/5 lies between 3/4 and 5/6.
Fractions and Decimals Which of the following fraction does not lie between 5/6 and 8/15? 2/3 6/7 4/5 3/4 2/3 6/7 4/5 3/4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Converting each of the given fractions into decimal form, we get,5/6 = 0.838/15 = 0.532/3 = 0.663/4 = 0.754/5 = 0.86/7 = 0.85Clearly, 0.85 does not lie between 0.83 and 0.53Hence the required fraction is 6/7.
Fractions and Decimals [12 / (0.09 of 0.3)] x 2=? 8000/90 8000/9 800/9 800/90 8000/90 8000/9 800/9 800/90 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given expression = ( 12/ 0.027) x 2= ( 12 / 0.027) x 2 = 24000/27 = 8000/9
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