If 6:7::36:x, then find the fourth proportion.
If : 56×−712×x14 = 54, find x.
If (x−1x)=6, then (x2+1x2)=?
(a) 36 (b) 38 (c) 32 (d) 36136
If △ ABC∼△ DEF such that AB=6cm andDE=7cm. Find the ratio of areas of △ ABC and △DEF.
The mean and median of the numbers 1, 2, 3, 4, y, 8, 9, 10, 12 and x written in increasing order are both 10, then the values of x and y are:
Find the sum of the roots of the equation |x2| - 36|x|