Quantitative Aptitude - Arithmetic Ability Questions

If three successive discounts of 20%, 30% and 40% are given, then what will be the net discount (in percentage)?

What would be the compound interest of Rs. 25000 for 2 yrs. at 5% per annum?

Two equal sum are invested in two different schemes. One scheme gives simple interest and the other gives compound interest (annual compounding).The sum of interest obtained after 2 years from both the schemes is Rs 3717. If both scheme have 13% per annum interest rate, then what is the first year interest (in Rs) for simple interest scheme?

Two circles touch each other internally. The radius of the smaller circle is 6 cm and the distance between the centre of two circles is 3 cm. The radius of the larger circle is

The difference between the ages of mother and son was 21 when mother's age was 43. If father is elder by 3 years to mother, what will be the difference between the ages of son and father when father attains 50 years?

Monika's father was 38 years of age when she was born while her mother was 36 years old when her brother four years younger to her was born. What is the difference between the ages of her parents?

Choose the correct option for the figure shown below.

If ax - 4y = -6 has a slope of -3/2. What is the value of a?