Fractions and Decimals Find the sum 3/10 + 5/100 + 8/1000 in decimal form ? None of these 35.8 0.358 3.58 None of these 35.8 0.358 3.58 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/10 + 5/100 + 8/1000= 0.3 + 0.05 + 0.008 = 0.358
Fractions and Decimals 54.327 x 357.2 x 0.0057 is same as 54327 x 3572 x 0.0000057 5.4327 x 3.572 x 0.57 543.27 x 35.72 x 000.57 5.4327 x 3.572 x5.7 54327 x 3572 x 0.0000057 5.4327 x 3.572 x 0.57 543.27 x 35.72 x 000.57 5.4327 x 3.572 x5.7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of decimal places in the given expression = 8Number of decimal places in (A) = 8Number of decimal places in (B) = 9 Number of decimal places in (C)= 7Clearly , the expression in (A) is the same as the given Expression.
Fractions and Decimals If √0.05 x 0.5 x a = 0.5 x 0.05 x √b, then a/b = ? .00025 25 .025 .0025 .00025 25 .025 .0025 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 A person was asked to state his age in years. His reply was , "Take my age 3 years hence, multiply it by 3 and subtract 3 times my age 3 years ago and you will know how old I am." What was the age of 17 16 19 18 17 16 19 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the present age of person be x years.Then, 3(x + 3) - 3(x - 3 ) = x <=> (3x + 9) - (3x - 9) = x <=> x = 18
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 5/6 5/4 5/8 5/10 5/6 5/4 5/8 5/10 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 The place value of 3 in 0.07359 is ? 0.03 0.3 0.003 0.0003 0.03 0.3 0.003 0.0003 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The place value of 3 in the given decimal fraction is .003 i.e. 3/1000.
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