24
22
-12
-21
Correct answer is D
x ∗ y = x + y - xy
(x ∗ 2) + (x ∗ 3) = 68
= x + 2 - 2x + x + 3 - 3x
= 86
3x = 63
x = -21
p = |x302y3424| Q = \(\begin{vmatrix} x ...
A chord of a circle subtends an angle of 120° degrees at the centre of a circle of diameter...
Find the sum of the first twenty terms of the progression log a, log a2, log a3........
The sum of the progression is 1 + x + x2 + x3 + .........
The histogram shows the age distribution of members of a club. How many members are in the club? ...
Each interior angle of a regular nonagon(nine sided polygon) is equal to...