Aptitude - Decimals & Fractions Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Decimals and Fractions. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Answer : C
Explanation
(4√6)/(3√6-0.2)=(4x2.4)/(3x2.4-0.2) =9.6/(7.2-0.2) =1.37
Q 2 - How many digits are there to the right of decimal in the product of 45.875x323.87?
Answer : C
Explanation
5
Answer : D
Explanation
(0.72 +0.62 +0.52)/(0.072 +0.062 +0.052 )= (0.72 +0.62 +0.52)/0.12(0.72 +0.62 +0.52 ) = 1/.01 = 100
Q 4 - The sum of the numerator and denominator of a fraction is 15. If the numerator is increased by 5, the fraction becomes 1/4. Find the fraction.
Answer : B
Explanation
Let numerator be x denominator be y x+y=15... (1) (x+5)/y = 1/4 4(x+5) =y 4x+20 =y ... (2) Solving equation (1) & (2) we get x=7 y=8 the fraction is 7/8.
Answer : C
Explanation
0.6 0.66 0.066 6.606 ----- 7.932 -----
Q 6 - What is the value of 0.04 x 0.0162?
Answer : B
Explanation
0.04 x 0.0162 = 4/100 x 162/10000 = 648 /100 x 1/104 = 6.48 x 10-4
Answer : D
Explanation
Let 2252.5 / 225x = 225 => 225x = 2252.5 / 225 => 225x = 2252.5 - 1 = 2251.5 => x = 1.5
Q 8 - (0.07 x 0.07 x 0.07 - 0.05 x 0.05 x 0.05) / (0.07 x 0.07 + 0.07 x 0.05 + 0.05 x 0.05)= ?
Answer : B
Explanation
As a3 - b3 = (a-b)(a2-ab + b2) Thus (a3 - b3) / (a2-ab + b2) = a - b ∴ (0.07 x 0.07 x 0.07 - 0.05 x 0.05 x 0.05) / (0.07 x 0.07 + 0.07 x 0.05 + 0.05 x 0.05) = 0.07 - 0.05 = 0.02
Answer : D
Explanation
0.2222 + 0.3333 + .03232 = 2/9 + 3/9 + 32/99 = 5/9 + 32/99 = (55+32)/99 = 87/99 = 0.8787
Q 10 - If 1 litre of water weighs 1 kg. How many cubic millimeters of water will weigh .1 gm?
Answer : D
Explanation
1000 gm is weight of 1000 cubic millimeter of water. => 1 gm is weight of 1 cubic centimeter = 1000 cubic millimeters of water 1/10 gm is weight of 1000 x 1/10 = 100 cubic millimeter of water.
