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 16 19 18 17 16 19 18 17 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 The number 0.127 is how much greater than 1/8 ? 1/800 1/300 1/500 1/1000 1/800 1/300 1/500 1/1000 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 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 The expression (11.98 * 11.98 + 11.98 * (x) + 0.02 * 0.02) will be a perfect square for x equal to : 0.04 4 0.4 None of these 0.04 4 0.4 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given = (11.98)^2 + (0.02)^2 + 11.98 * x. For the given expression to be a perfect square, we must have11.98 * x = 2 * 11.98 * 0.02=> x = 0.04
Fractions and Decimals 4.036 divided by 0.04 gives 10.9 10000.9 100.9 1000.9 10.9 10000.9 100.9 1000.9 ANSWER DOWNLOAD EXAMIANS APP
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