Quantitative Aptitude - Arithmetic Ability Questions

If the Arithmetic mean of 7, 5, 13, x and 9 is 10, then the value of x is

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:5 and area of ΔABC is 98 cm sq, what is the area (in sq cm) of quadrilateral BDEC?

Alipta got some amount of money from her father. In how many years will the ratio of the money and the interest obtained from it be 10:3 at 6% simple interest per annum?

P does half as much work as Q in 1/3 of the time. If together they take 15 days to complete a work, how many days will P take to do it alone?

The smallest number that must be subtracted from 2800 so that the obtained number is a perfect square is

Which of the numbers given below is the square root of 15376?

PQ is a diameter of a circle with centre O. RS is a chord parallel to PQ subtends an angle of 40° at the centre of the circle. If PR and QS are produced to meet at T, then what will be the measure (in degrees) of ∠PTQ?

If y=2secθ and x=3tanθ then x29-y24 is