Maths MCQs

Three pipes P, Q and R can fill a cistern in 40 minutes, 80 minutes and 120 minutes, respectively. Initially, all the pipes are opened. After how much time (in minutes) should the pipes Q and R be turned off so that the cistern will be completely filled in just half an hour? Optionsa) 10b) […]

Kiran lent Rs 4,000 to two persons such that one part of it at the rate of 8% per annum and the remaining part at the rate of 10% per annum. He got an annual simple interest of Rs 352. Then the sum lent at 10% is: Optionsa) Rs. 1800b) Rs. 2400c) Rs. 1600d) Rs. 2200 Solution

Find the gain percentage , given that Priya sold her scooter for Rs 42564 gaining 1/6th of the selling price. Optionsa) 40%b) 20%c) 15%d) 30% Solution As per questionPriya sold her scooter (SP) = 42564 Rs.gaining  of the selling price (P) = 1/6thP = P = 7094CP = SP – P CP = 42564 – 7094

The marked price of an article is 26% more than its cost price. If a discount of 32% is given, what will be the loss percentage? Optionsa) 15.25%b) 14.32%c) 12.26%d) 18.64% Solution As per questionMP = CP x 1.26Discount on MP 32%SP = (CP x 1.26) x .68SP = CP x .8568Loss = SP – CP

A person earns Rs 16,000 per month and spends 80% of his income and saves the remaining amount. If his income increases by 20% and expenditure by 10%, find the percentage of increase in his savings. Optionsa) 140 %b) 90 %c) 60 %d) 120% Solution As per questionIncome = 16000Expenditure = 80%Saving = 3200Expenditure = Income x

The average temperature of a city for the first sixteen days of January is 22°C, and the average temperature for the last sixteen days of the same month is 26°C. If the average temperature for the entire month is 24°C, what is the temperature on the sixteenth day? Optionsa) 240Cb) 250Cc) 220Cd) 230C Solution As per questionTotal temperature

In an election between two candidates, y% of the voters did not vote. 10% of the votes cast were declared invalid, while all the valid votes were cast in favour of either of the two candidates. The candidate who got 59.375% of the valid votes cast was declared elected by 2484 votes. If the number of people eligible

A grocer professes to sell rice at the cost price, but uses a fake weight of 870 g for 1 kg. Find his profit percentage (correct to two decimal places). Optionsa) 14.94 %b) 15.11 %c) 18.21 %d) 11.11 % Solution As per questionSP = 1000 gCP = 870 gP% = %P% = %P% = % =

R pays Rs 100 to P with Rs 5, Rs 2 and Rs 1 coins. The total number of coins used for paying are 40. What is the number of coins of denomination Rs 5 in the payment? Optionsa) 18b) 16c) 17d) 13 Solution As per questionR pays to P = 100 Rs. R gives coins

An article is marked at Rs 550. If it is sold at a discount of 40%, then the selling price becomes 10% more than its cost price. What is the cost price (in Rs)? Optionsa) 300b) 220c) 200d) 330 Solution As per questionMP = 550 Rs.40% of discountS.P = 550 x .60 = 330Selling price becomes 10%