Maths MCQs

The certain sum amounts to Rs 9,982.50 in 2 and half years at 12% p.a., interest compounded 10-monthly. The sum (in Rs) is:

The certain sum amounts to Rs 9,982.50 in  years at 12% p.a., interest compounded 10-monthly. The sum (in Rs) is: Options a) 8500b) 7800c) 8000d) 7500 Solution As per question Interest rate per year = 12%Interest rate to 10 months = = 10%Time = = 30 months Time = = 3A = 9982.50 = 9982.50 =

The certain sum amounts to Rs 9,982.50 in 2 and half years at 12% p.a., interest compounded 10-monthly. The sum (in Rs) is: Read More »

Divide Rs 2,760 in to two parts such that when these are invested for 2 and 4 years, respectively, at the rate of 5%

Divide Rs 2,760 in to two parts such that when these are invested for 2 and 4 years, respectively, at the rate of 5% per annum simple interest, the amounts received are equal. What is the second part (in Rs) invested? Optionsa) 1100b) 1500c) 1320d) 1440 Solution As per questionLet First Part is a and

Divide Rs 2,760 in to two parts such that when these are invested for 2 and 4 years, respectively, at the rate of 5% Read More »

The average of 10 observations is 46. It was realized later that an observation was misread as 42 in place of 142. The correct average is:

The average of 10 observations is 46. It was realized later that an observation was misread as 42 in place of 142. The correct average is: Options:a) 52b) 46c) 58d) 56 Solution As per questionSum of all No. = 46 x 10 = 460Correct sum = 460 + 142 – 42 = 560Correct average =

The average of 10 observations is 46. It was realized later that an observation was misread as 42 in place of 142. The correct average is: Read More »

The ratio of A’s and B’s salary is 6 : 7, If B’s salary is increased by 5 1/2, then his total salary becomes Rs 1,47,700.

The ratio of A’s and B’s salary is 6 : 7, If B’s salary is increased by , then his total salary becomes Rs 1,47,700. The salary (in Rs) of A is : Options a) 1,10,000b) 1,20,000c) 1,40,000d) 1,35,000 Solution As per question Ratio of salary A and B = 6x : 7x If B’s salary

The ratio of A’s and B’s salary is 6 : 7, If B’s salary is increased by 5 1/2, then his total salary becomes Rs 1,47,700. Read More »

The greatest number that will divide 398, 437 and 5425 leaving 7, 12 and 2 as remainders, respectively, is :

The greatest number that will divide 398, 437 and 5425 leaving 7, 12 and 2 as remainders, respectively, is : Options a) 11b) 15c) 17d) 19 Solution As per question Numbers = 398 , 437 , 5425Remainder = 7 , 12 , 2Subtract the Remainder from numbers = 391 , 425 , 5423Factors of No.

The greatest number that will divide 398, 437 and 5425 leaving 7, 12 and 2 as remainders, respectively, is : Read More »

Anu is four times as good as Binni in completing a task. Together they finish the same task in 7 hours. In how many hours will Anu alone complete the task?

Anu is four times as good as Binni in completing a task. Together they finish the same task in 7 hours. In how many hours will Anu alone complete the task? Optionsa) 22b) 35/4c) 31/4d) 24 Solutions As per question Effciency of Anu = 4mEffiency of Binni = 1mEffiency of Both = 5mTotal work =

Anu is four times as good as Binni in completing a task. Together they finish the same task in 7 hours. In how many hours will Anu alone complete the task? Read More »

The salaries of Ravi and Sumit are in the ratio 4 : 5, If the salary of each is increased by Rs 6,000 the new ratio becomes 35 : 40, What will be Sumit’s increased salary?

The salaries of Ravi and Sumit are in the ratio 4 : 5, If the salary of each is increased by Rs 6,000 the new ratio becomes 35 : 40, What will be Sumit’s increased salary? Options a) Rs. 26,000b) Rs. 36,000c) Rs. 16,000d) Rs. 160,000 Solutions As per questionThe salaries of Ravi and Sumit

The salaries of Ravi and Sumit are in the ratio 4 : 5, If the salary of each is increased by Rs 6,000 the new ratio becomes 35 : 40, What will be Sumit’s increased salary? Read More »

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