Quantitative Aptitude - Arithmetic Ability Questions

In a mixture of 25 litres, the ratio of milk to water is 4:1. Another 3 litres of water is added to the mixture. The ratio of milk to water in the new mixture is

The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?

Find two numbers such that their mean proportion is 12 and third proportion is 768.

If (36 - 16x) - (4x - 8) = 4, then the value of x is

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?

Determine the value of ‘r’ for which the equation 13x + 5 = rx + 18 has no solution.

In a triangle PQR, ∠PQR = 90 deg, PQ = 10 cm and PR = 26 cm, then what is the value (in cm) of inradius of incircle?

Five angles of a hexagon measure 116 deg each. What is the measure of the remaining angle?