Quantitative Aptitude - Arithmetic Ability Questions

tan3A is equal to

Find the odd word/letters/number from the given alternatives.

PQRA is a rectangle, AP = 22 cm, PQ = 8 cm. ΔABC is a triangle whose vertices lie on the sides of PQRA such that BQ = 2 cm and QC = 16 cm .Then the length of the line joining the mid points of the sides AB and BC is

In a Rhombus ABCD, measure of angle CAB is 25°, what is the measure of angle ABC?

Two equal circles intersect each other at point A and B, whose centers are O and O’. OO’ = 24 mm and AB = 10 mm, then find the area (in sq. mm) of the circle.

In a Δ ABC, DE || BC. D and E lie on AB and AC respectively. If AB = 7 cm and BD = 3cm, then find BC:DE

Two students appeared for an examination. One of them secured 26 marks more than the other and his marks were 75% of the sum of their marks. The marks obtained by them are

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