Quantitative Aptitude - Arithmetic Ability Questions

Akash is 3 times as good a workman as Baldev and therefore is able to finish a job in 40 days less than Baldev. Working together, they can finish it in _____.

A can do a work in 21 days and B in 42 days. If they work on it together for 7 days, then what fraction of work is left?

The simple interest accrued on a sum of money at the end of four years is 1/5th of its principal. What is the rate of interest per annum?

The mode and median of the data 8, 6, 8, 7, 8, 6, 8, 7, 6 is

A quadrilateral is inscribed in a circle. If the opposite angles of the quadrilateral are equal and length of its adjacent sides are 6 cm and 8 cm, what is the area of the circle?

A person crosses a 900 metres wide road in 120 seconds. What is his speed (in km/hr)?

Value of (cos 53° - sin 37°) is

If xy = -30 and x2 + y2 = 61, then find the value of (x + y).