Quantitative Aptitude - Arithmetic Ability Questions

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 ΔADE is 8 cm sq, what is the area (in sq cm) of quadrilateral BDEC?

How many numbers are there from 300 to 650 which are completely divisible by both 5 and 7?

If 90% of A = 30% of B and B = x% of A, find x.

In the first 10 overs of a cricket game, the run rate was only 3.2. The run rate in the remaining 40 overs to reach the target of 282 runs is

The sum of 4x + 3y ­ 7z, x ­ y ­ z and ­2x ­ 3y + 4z is

The value of sinθ1+cosθ + sinθ1-cosθ

Reflection of the point (-3,6) in the x-axis is

Find the degree of the polynomial 8x4 + 2x2y3 + 4