Quantitative Aptitude - Arithmetic Ability Questions

If PA and PB are tangents to the circle with centre O such that ∠APB=50°, then the ∠OAB=

The average of 17 results is 60. If the average of first 9 results is 57 and that of the last 9 results is 65, then what will be the value of 9th result?

Find the length of one side of a rhombus whose area is 24 sq.cm and the sum of the lengths of its diagonals is 14 cm.

Expand and simplify (x + 5)2 + (x - 3)2

The top of a broken tree touches the ground at a distance of 15 m from its base. If the tree is broken at a height of 8 m from the ground, then the actual height of the tree is

Δ ABC is right angled at B. If m∠A = 60°, then what is the value of 2 Sec C x 1/2 Sin A?

The simplified form of (x + 3)2 + (x - 1)2 is

If x - 2y = 2 and 3x + y = 20, then the value of (x,y) is