Question
The average of 4, 6, 8, 12 and x is 7 and the average
of x, 9, 13, 15 and y is 9. What is the value of 2x – 3y?Solution
The correct answer is D
If a + (1/a) = 2, then find the value of (a5 + a3 + 6)/(7a – 5).Â
In a triangle ABC, a point D lies on AB and points E and F lie on BC such that DF is parallel to AC and DE is parallel to AF. If BE = 4 cm. EF = 6cm. th...
If 5x - 13xy + 6y = 0, find x : y.
If a + b + c = 10 and ab + bc + ca = 28, then find the value of a² + b² + c².

If (5x - 2y) = 170 and 4x:3y = 32:9, then find the value of (3x² + y²).
Find the value of ‘x’ in the given expression
(49/16)x × (64/343)x-1 = 4/7
If a =
and b = <...Consider a function f(x) = x4 + x3 + x2 + x + 1, where x is a positive integer greater than 1. What will be the rema...