Fractions and Decimals If two-third of two-seventh of a number is 60, then two-fifteenth of that number is 34 42 56 71 34 42 56 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 Evaluate : [(2.39)² - (1.61)²] / [2.39 - 1.61] 4 6 2 3 4 6 2 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Expression=(a² - b²) / (a - b)=[(a + b)(a - b)] / (a - b)= (a + b)= (2.39 + 1.61)= 4
Fractions and Decimals 450.271 + 369.422 ÷ 0.03 - 108.612 x 2.001 = ? 12532 13532 14532 15532 12532 13532 14532 15532 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 450.271 + (369.422 ÷ 0.03) - (108.612 x 2.001)= 450 + 369/0.03 - (109 x 2) = 450 + 12300 - 218 = 12532
Fractions and Decimals If the numerator of a fraction is increased by 2 and the denominator is increased by 1, the fraction because 5/8 and if the numerator of the same fraction is increased by 3 and the denominator is incr 4/7 1/7 3/7 2/7 4/7 1/7 3/7 2/7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the original fraction be p/q Then, (p + 2) / (q + 1) = 5/8⇒ 8p - 5q = 11 .....(i)Again (p + 3) / (q + 1) = 3/4⇒ 4p - 3q = 9 ...(ii)Solving equations , (i) and (ii), we get ,p = 3 and q = 7∴ Fraction = 3/7
Fractions and Decimals 9.724 ÷ 100 = ? 0.09724 None of these 9.724 0.9724 0.09724 None of these 9.724 0.9724 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9.724 ÷ 100 = 0.09724Shift decimal two palaces to the left. i.e 100
Fractions and Decimals 0.0169 / 0.013=? 130/10 1300/10 13/10 None of these 130/10 1300/10 13/10 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.0169 / 0.0130 = 169 / 130 = 13 / 10
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