Maths MCQs

If the sum of three numbers is 18 and the sum  of their squares is 36, then find the difference between the sum of their cubes and three times of their product. Optionsa) -1944b) 1449c) 4149d) -1494 Solution As per question The sum of the three numbers is 18a+b+c = 18The sum of their squares […]

The value of 15÷3 of 2×2+9÷18 of 2×4−4÷8×2 is:  Optionsa) 5b) c) 8d) Solution As per question15÷3 of 2×2+9÷18 of 2×4−4÷8×215÷6×2+9÷36×4−4÷8×2=5 Answer: 5

Items Price per unit (in Rs Quantity Pens 10 x Notebooks 20 6 Optionsa) 7b) 4c) 5d) 6 Solution As per questionPen + Notebooks = 180 = 18010x + 120 = 18010x = 180 – 12010x = 60x = 60/10 = 6 Answer: 6

If A : B = 6 : 8 and B : C = 5 : 12, then A : B : C is:  Optionsa) 15 : 20 : 48b) 14 : 31 : 28c) 10 : 23 : 14d) 11 : 32 : 44 Solution As per questionA : B = 6 : 8B :

Places A and B are 20 km apart on the highway. A car starts from A and another from B at the same time. If the cars travel in the same direction at different speeds, they meet in one hour. If they travelled towards each other, they meet in 12 minutes. What are the speeds (in km/h) of

A policeman noticed a thief at a distance of 500 metres. The policeman started running and the thief also started running at the same time. The thief is running at a speed of 15 km/h. It took 15 minutes for the policeman to catch the thief. Find the speed of the policeman (in km/h). Optionsa) 10b) 11c) 12d)

Find the value of x, y and z, so as to satisfy the equations given below:x + y +z = 12; x + y – z = 6; x – y + z = 4  Optionsa) x = 5, y = 4, z = 3b) x = 5, y = -4, z = -3c) x

How much does he spend (in Rs) on food? Options a) 12240b) 12420c) 13420d) 11420 Solution As per questionMonthly income of Aditya = 54000Food on expenditure = 23%Food on expenditure = = 12420 Rs. Answer: b) 12420

If the sum of two sides of an equilateral triangle is 16 cm, then find the third side. Optionsa) cannot be foundb) 16 cmc) 8 cmd) 4 cm Solution As per questionSides of an equilateral triangle = a + a + aTwo sides a + a = 2a = 16 cma = 8 cm Answer:

If, on a marked price, the difference between selling prices with a discount of 65% and with two successive discounts of 30% and 40% is Rs 105, then the marked price (in Rs) is :  Optionsa) 1650b) 1050c) 1500d) 1320 Solution As per questionD1 = 30%D2 = 40%Successive Discount = Successive Discount = Successive Discount