Maths MCQs

A woman spends 2/3 of her income. If her income increases by 18% and the expenditure increases by 24% then the percentage increase in her savings will be: Optionsa) 3%b) 6%c) 4%d) 5% Solution Let the Income = xExpenditure = Saving = Income increases 18% = Expenditure increases 24% = Expenditure increases 24% = New

Naman bought few apples for Rs.720 from a shop. He negotiated the price and the shopkeeper reduced it by Rs.2 per apple. Due to this Naman could buy four more apples than what he had bought earlier. How many apples did he originally buy? Optionsa) 36b) 44c) 40d) 48 Solution Let of Apple = xNo.

S borrowed some amount from R and promised to pay him 8% interest. Then S invested the borrowed amount in a scheme, upon which he earned a profit of 5% after paying R, the principal amount with interest. How much percentage R would have gained, if he would have invested in the scheme directly? Optionsa)

A boat can go 54 km upstream in 6 hours. If the speed of the stream is 4.8 km/h, then how much time (in hours) will the boat take to cover a distance of 279 km downstream? Optionsa) 18b) 15c) 16d) 20 Solution As per questionBoat can go 54 km upstream in 6 hoursSpeed of

A class of 30 students appeared in a test. The average score of 12 students is 62, and that of the rest is 74. What is the average score of the class? Optionsa) 67.2b) 68.2c) 69.2d) 70.2 Solution As per questionTotal No. of students appeared in a test = 30Average score of 12 students =

Simplify : Options a) 17b) 36c) 28d) 31 Solution As per question = 12 x 3 = 36 Answer: 36

The ages of two friends, Ram and Ravi, differ by 7 years. Ram’s mother Mayadevi is three times as old as Ram, and Ravi is four times as old as his brother Soham. The ages of Mayadevi and Soham differ by 65 years. Find the age of Mayadevi (in years). Optionsa) 69b) 45c) 85d) 36 Solution As

Simplify  Optionsa) 0.28b) 0.48c) 0.42d) 0.37 Solution As per questionLet a = 0.58 , b = 0.1a3 – b3 = (a-b) (a2+b2+ab) = (a-b)(a – b) = 0.58 – 0.1 = 0.48 Ans: b) 0.48