Quantitative Aptitude - Arithmetic Ability Questions

Find the least number to be added to 1739 so that it is exactly divisible by 11.

Of the 5 numbers whose average is 78, the first is 2/11 times the sum of other 4. The first number is

In a cyclic quadrilateral ABCD ∠BCD=120° and passes through the centre of the circle. Then ∠ABD = ?

The radius of a sphere and hemisphere are same. The ratio of their total surface area is

The distance between the points (2, 7) and (k, -5) is 13. What is the value of k?

If one more cobbler is hired the output of a shoe making unit will increase from 50 pairs of shoes to 55 pairs per day, but then the shoe making unit will have to reduce the price of a pair of shoes from Rs 3200 to Rs 3000 per pair to sell the additional output, the marginal revenue product of the last cobbler is

The number whose square is equal to the difference of the squares of 37 and 23 is:-

The area of a square is 72.25 cm². Find its perimeter (in cm).