Quantitative Aptitude - Arithmetic Ability Questions

PT is a tangent to a circle with centre O and radius 6 cm . If PT is 8 cm then length of OP is

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

Find the missing digit if it has 11 and 13 as factors?

A sum of Rs 4000 becomes Rs 5800 in 3 years, when invested in a scheme of simple interest. If the same sum is invested in a scheme of compound interest with same yearly interest rate (compounding of interest is done yearly), then what will be the amount (in Rs) after 2 years?

Select the odd word/letters/number/number pair from the given alternatives.

If the number 247_679 is completely divisible by 9, then the smallest whole number in the place of the blank digit will be

The simple and compound interest that can be earned in two years at the same rate is Rs 1,000 and Rs 1,040 respectively. What is the rate (percent per annum) of interest?

The simple interest on a certain sum of money invested at a certain rate for 2 years amounts to Rs. 1200. The compound interest on the same sum of money invested at the same rate of interest for 2 years amounts to Rs. 1290. What was the principal?