Fractions and Decimals \15.60 x 0.30=? 468 46.8 4.68 40.68 468 46.8 4.68 40.68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∵ 1560 x 30 = 46800∴ 15.60 x 0.30 = 4.6800= 4.68 ( Four places of decimal )
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 19 16 17 18 19 16 17 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 What will come in place of question mark in the following equation ? 54.(?)3 + 543 + 5.43 = 603.26 8 3 7 5 8 3 7 5 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.
Fractions and Decimals 138.009 + 341.981 - 146.305 = 123.6 + ? 2.10085 210.085 21.0085 21.0085 2.10085 210.085 21.0085 21.0085 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 138.009 + 341.981 - 146.305 = 123.6 + zThen, z = (138.09+341.981) - (146.305+123.6)= 479.99 - 269.905 = 210.085
Fractions and Decimals [( 3.242 x 14 ) / 100] = ? 45.388 0.045388 4.5388 0.45388 45.388 0.045388 4.5388 0.45388 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Multiplying 3.242 x 14=4.5388Now divide 4.5388 by 100So, 4.5388 ÷ 100= 0.045388∴ Shift the decimal two places to the left as 100
Fractions and Decimals [12 / (0.09 of 0.3)] x 2=? 800/9 8000/9 800/90 8000/90 800/9 8000/9 800/90 8000/90 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given expression = ( 12/ 0.027) x 2= ( 12 / 0.027) x 2 = 24000/27 = 8000/9
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