Quantitative Aptitude - Arithmetic Ability Questions

Select the odd letters from the given alternatives.

select the odd word/letters/number/number pair from the given alternatives.

Choose the odd word/letters/number/number pair from the given alternatives.

If cos(A-B) - cos(A+B) = x, then the value of x is

PQR is a right angled triangle in which ∠R = 90°. If RS ⊥ PQ, PR = 3 cm and RQ = 4 cm, then what is the value of RS (in cm)?

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 sq cm, what is the ratio of area of ΔADE: area of quadrilateral BDEC?

Three cubes of iron whose edges are 6cm, 8cm and 10cm respectively are melted and formed into a single cube. The edge of the new cube formed is

For the figure given below, find the value (in degrees) of 2∠A + ∠B.