Fractions and Decimals (0.29)2 - (0.01)2/0.3 = ? 0.30 0.34 0.32 0.28 0.30 0.34 0.32 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 0.15 / (0.5 / 15) = ? 400.5 40.5 None of these 4.5 400.5 40.5 None of these 4.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let Y = 0.15 / (0.5 / 15) = (15/100) / [(5/100) / 15) = 4.5
Fractions and Decimals 0.9 x 0.008=? None of these 0.72 0.072 0.00072 None of these 0.72 0.072 0.00072 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∵ 9 x 8=72∴ 0.09 x 0.008 = 0.00072 (Five place of decimal )
Fractions and Decimals If √0.05 x 0.5 x a = 0.5 x 0.05 x √b, then a/b = ? .00025 .0025 .025 25 .00025 .0025 .025 25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given expression = √0.5 x .5 x a = .5 x .05 x √ b⇒ √.025 x a = 0.25 x ⇒ b⇒ 0.025a = 0.25 x .025 x b∴ a/b = (.025 x .025) /.025 = .025
Fractions and Decimals When 0.232323.... is converted into a fraction , then the result is 23/99 24/99 25/99 26/99 23/99 24/99 25/99 26/99 ANSWER DOWNLOAD EXAMIANS APP
Fractions and Decimals (.125 + .027) / (.5 x .5 - 1.5 + .09) = ? 80 8 800 0.8 80 8 800 0.8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given expression = [(0.5)³ + (0.3)³] / [(0.5)² - 0.5 x 0.3 + (0.3)²]= [a³ + b³] / [a² - ab + b²]=[(a + b)(a² - ab + b²)]/ [a² -ab + b²]= a+b = 0.5 + 0.3 = 0.8
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