Maths MCQs

A can do a certain work in 15 days. B is 10% less efficient than A, and C is 20% more efficient than A. All the three work together for 3 days. The remaining work is completed by D alone in  days. D alone can complete the original work in: Options:a) 15 daysb) 18 daysc) 25 […]

The difference between the height and the radius of a solid cylinder is 23 cm. The total surface area of the cylinder is 1628 cm22,The height and the radius of the cylinder, respectively, are π= : Options a) 33 cm , 10 cmb) 30 cm , 7 cmc) 32 cm , 09 cmd) 28 cm

The number of years taken for a sum of Rs 5,000 to become Rs 5,832 at a rate of 16% per annum compounded half yearly, will be:  Options a) 1.5 yearsb) yearsc) 2 yearsd) 1 years Solution As per question P = 5000A = 5832R = 16% Rate half yearly (r) = = 8%Number of

A loss of % gets converted into a profit of % when the selling price is increased by Rs 132.60. The cost price (in Rs) of the article is : Solution: Let the Cost Price (CP) = 100a First case: SP = CP- CP x Loss%SP= % = 89.5a Second Case: SP=CP+ CP x Profit%SP=

The number of student in class IX and class X is 42 and 45, respectively. The ratio of the number of boys to girls in classes is IX and X is 9 : 5 and 8 : 7, respectively, What is the difference between the total number of boys and the total number of girls

A batsman scored 124 runs, which included 6 boundaries and 10 sixes. what percentage of his total score did he make by running between the wickets? Optionsa) %b) %c) %d) % Solution As per questionThe batsman scored from boundaries = 6 x 4 = 24 runs The batsman scored from sixes = 10 x 6

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 value of 3×7+5−6÷3−9+45÷5×4−45 is: Optionsa) 9b) 6c) 7d) 36 Solution As per question  3×7+5−6÷3−9+45÷5×4−45  3×7+5−2−9+9×4−45  21+5−2−9+36−45  26−2−9+36−45  62−47−9 62−56 6 Ans: 6

A certain sum amounts to Rs 13200 after 4 years and to Rs 16400 after 8 years at the same rate percent p.a. at simple interest. The simple interest (in Rs) on the same sum at 10% p.a. for 3 1/5 years will be : Options a) 4000b) 3200c) 2500d) 3500 Solution As per questionP = Principle

What is the least number added to 2483 so that it is completely divisible by 3, 4, 5 and 6? Options a) 37 b) 23c) 22d) 30 Solution As per question LCM of 3 , 4 , 5 , 6 = 60Quotient = 41Remainder = 2360 – 23 = 37 Ans : 37 to be