Quantitative Aptitude - Arithmetic Ability Questions

A certain sum of money was divided between A, B and C in the ratio 5:6:9. If A received Rs. 450 the sum divided was

A student multiplied a number by 6/13 instead of 13/6. What is the percentage error in the calculation?

2 is what percent of 50?

Which of the following pair of numbers is the solution of the equation 3x+2+ 3–x= 10 ?

A and B are positive integers. If A + B + AB = 65, then what is the difference between A and B (A, B ≤ 15)?

A trader marks up his goods by 120% and offers 30% discount. What will be the selling price (in Rs) if the cost price is Rs 750?

The radius of base of solid cone is 9 cm and its height is 21 cm. It cut into 3 parts by two cuts, which are parallel to its base. The cuts are at height of 7 cm and 14 cm from the base respectively. What is the ratio of curved surface areas of top, middle and bottom parts respectively?

Find the fourth proportional to 2, 3, 6.