Quantitative Aptitude - Arithmetic Ability Questions

If 7x - (3/2) * (4x - 9) = 6.5, then the value of x is?

Δ DEF is right angled at E. If m∠D = 30°, what is the length of DE (in cm), if EF = 6√3 cm?

The area of a circle is 616 sq cm, find its circumference?

Average of two numbers is 8 and average of other three numbers is 3 ; the average of the five numbers is

The average of 12 numbers is 35. If four numbers 20, 27, 15 and 29 are removed then what will be the average of remaining numbers?

(251+252+253+254+255) is divided by

In a circle of radius 8 cm, AB and AC are two chords such that AB = AC = 12 cm. What is the length of chord BC?

Sashi can do a piece of work in 20 days. Tanya is 25% more efficient than Sashi. The number of days taken by Tanya to do the same piece of work is: