Maths MCQs

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 TV was available for Rs 14,500, The price came down to Rs 11,890 during the Diwali sale. What is the percentage discount? Optionsa) 19.56%b) 19% c) 18% d) 17.6% Solution As per questionActual price of TV = 14500 Rs.Diwali sale price of TV = 11890 Rs.Discount = 14500 – 11890 = 2610Discount % =

A nine – digit number 89563x87y is divisible by 72. What is the value of ? Options a) 8b) 5c) 6d) 4 Solution As per question 89563x87y is divisible by 72Factor of 72 = 9 x 8The number will be divided by 9 and 8 Divisibility Rule The number is divisible by 8 if last 3 digit are

A solid metallic rectangular block of dimensions 112 cm × 44 cm × 25 cm is melted and recast into a cylinder of radius 35 cm. The curved surface area (in cm2) of the cylinder is: (Take π=22/7) Optionsa) 7260b) 6600c) 7040d) 6160 Solutions As per questionsVolume of cuboid = Volume of cylinder = Curved surface area of the

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

What is 12% of 4% of 7% of 2 × 106 ? Options a) 386b) 583c) 672d) 121 Solutions As per questions = = = 672 Ans: c) 672