Fractions and Decimals If 1.5 x a = 0.04 x b then the value of (b - a) / ( b + a) is ? None of these 73/77 73/770 730/77 None of these 73/77 73/770 730/77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP a / b = 0.04 / 1.5 = 4 / 150 = 2 / 75∴ Given Exp. (b - a) / ( b + a)= (1- a/b ) / (1 + a/b) = (1- 2 / 75) / (1 + 2 / 75)= ( 73/75 ) / ( 77/75)= 73/77
Fractions and Decimals [(0.87)³ + (0.13)³] / [(0.87)² - 0.87 x 0.13 + (0.13)²] = ? 3 4 2 1 3 4 2 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Expression = ( a³ + b³ )/ (a² + b² - ab) where = 0.87 and b = 0.13= [(a + b ) (a² + b² - ab)] / (a² + b² - ab) = a + b = 0.87 + 0.13= 1
Fractions and Decimals 0.0169 / 0.013=? 13/10 None of these 130/10 1300/10 13/10 None of these 130/10 1300/10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.0169 / 0.0130 = 169 / 130 = 13 / 10
Fractions and Decimals If √15 = 3.88, the value of √5/3 is ? 12.9 129 1.29 1290 12.9 129 1.29 1290 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √5/3 = √15/9= √15/3= 3.88/3 = 1.29
Fractions and Decimals Which of the following fraction are in ascending order ? 16/19, 11/14, 17/22 16/19, 17/22, 11/14 11/14, 16/19, 17/22 17/22, 11/14, 16/19 16/19, 11/14, 17/22 16/19, 17/22, 11/14 11/14, 16/19, 17/22 17/22, 11/14, 16/19 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 16/19 =0.842,11/14 =0.785 and 17/22 = 0.772∴ 0.772 < 0.785 < 0.842or 17/22 < 11/14 < 16/19.
Fractions and Decimals Evaluate : [(2.39)² - (1.61)²] / [2.39 - 1.61] 4 3 6 2 4 3 6 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Expression=(a² - b²) / (a - b)=[(a + b)(a - b)] / (a - b)= (a + b)= (2.39 + 1.61)= 4
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