Quantitative Aptitude - Arithmetic Ability Questions

The area of a right angled triangle ABC, right angled at B, is 46 sq units. A median is drawn from A to BC which intersects at D. Find the area (in sq. units)of triangle ABD.

If the areas of two similar triangle are in the ratio 5 : 7, then what is the ratio of the corresponding sides of these two triangles?

ΔPQR is right angled at Q. If cotP = 5/12, then what is the value of tanR ?

The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The 15th observation is

Shrenik switched on a bulb at 2 : 39 : 40 hours and switched it off on the same day at 12 : 30 : 34 hours. For how long was the bulb in switched-on mode?

If sinθ x cosθ = 1⁄2 . The value of sinθ ­- cosθ is where 0°< θ< 90°

In the following question, select the odd number from the given alternatives.

If XY = a+23 and YX = 13, then find the value of X2 + Y2X2 - Y2.