Question
Find the HCF of two numbers if LCM and product of those
two numbers are 34 and 680 respectively.Solution
LCM × HCF = 680 => 34 × HCF = 680 => HCF = 680/34 = 20
Present age of Vikrant is 20% less than the present age of Priya. Age of Vikrant 5 years ago was 50% the present age of Priya. Find the present average ...
If (r + s + t) = 12 and (rs + st + tr) = 60, then find the value of (r² + s² + t²).
- If x 4 Â + 1/x 4 Â = 194, x > 0, then find the value of x + 1/x + 2.
If √r + (1/√r) = 4, then find the value of r + (1/r).
In an orchard, the ratio of the number of mango and lichi trees is 9:10, respectively. Also, there are few apple trees in the orchard which is 50% more ...
If the length of a rectangle is increased by 40%, and the breadth is decreased by 20%,then the area of the rectangle increases by x%. Then the value of ...
If for non-zero x, x² - 4x - 1 = 0, what is the value of x² + 1/x²?
If a + b + c = 12 and ab + bc + ca = 50, then find the value of a2 + b2 + c2.
Simplify:
4x + 6y - [(8x + 5y) - (3x + 2y) + 3y] - 2xIf x ≠0 and x − 1/x = 5, find:
(i) x² + 1/x²
(ii) x³ − 1/x³
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