Fractions and Decimals If the numerator of a fraction is increased by 2 and denominator is increased by 3, the faction becomes 7/9 and if numerator as well as denominator are decreased by 1, the fraction becomes 4/5. What i 5/8 5/10 5/6 5/4 5/8 5/10 5/6 5/4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numerator and denominator be p and q respectively.Then, (p + 2) / (q + 3) = 7/9⇒ 9(p + 2) = 7(q +3)⇒ 9p - 7q = 3 ....(i)Again, (p - 1) / (q - 1) = 4/5⇒ 5p - 4q = 1 ....(ii)Solving (i) and (ii) we get,p = 5, q = 6Required fraction = 5/6
Fractions and Decimals 9.724 ÷ 100 = ? 9.724 0.9724 None of these 0.09724 9.724 0.9724 None of these 0.09724 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9.724 ÷ 100 = 0.09724Shift decimal two palaces to the left. i.e 100
Fractions and Decimals What decimal fraction is 40 ml of a litre ? .0004 .004 .04 4 .0004 .004 .04 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required fraction = 40/1000= 4/100 = .04
Fractions and Decimals The number 0.127 is how much greater than 1/8 ? 1/300 1/800 1/1000 1/500 1/300 1/800 1/1000 1/500 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.127 expressed as a fraction = 127/10001/8 can also be expressed as (1 x 125) / (8 x 125) = 125/1000The difference is 2/1000, which is 1/500
Fractions and Decimals 0.8 x ? =0.0004 0.005 0.0005 0.00005 0.05 0.005 0.0005 0.00005 0.05 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 0.8y = 0.0004Then,y = 0.0004 / 0.8 = 0.004 / 8= .0005
Fractions and Decimals What will come in place of question mark in the following equation ? 54.(?)3 + 543 + 5.43 = 603.26 5 7 8 3 5 7 8 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let x + 543 + 5.43 = 603.26.Then, x = 603.26 - (543 + 5.43) = 603.26 - 548.43 =54.83Missing digit = 8.
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