Question
The ratio of A and B present age is 5:2. The product of
their ages is 9000. What will be the ratio of their ages after 3 years?Solution
Let their present age be 5x and 2x respectively. Product of their ages = 10x² = 9000 => x² = 900 => x = 30 Present age of A = 5x = 150 years Present age of B = 2x = 60 years Ratio of their ages after 3 years = (150+3) : (60+3) = 153:63 = 17:7
30 27 20 9 ? - 25
147      138       120      93      ?      12
...92,  51,  21,  13.5,  x,  4.25
find the value of (10x + x -5)?
4, 8, 24, ?, 840, 9240
(45)2 ÷ ∛729 + (35)2 ÷ 1.4 =?
A series is 11, 20, 42, 82, 166, 330
If another series 4, a, b, c, d, 106 follows the same pattern as the given number series, then find the appr...
29    51    95    183    ?     711
What will be the next number in the series?
2, 7, 23, 70, ?
13 22 40 67 103 ?
...If 5,  6,  4,  39,   x,  585,
then, find the value of ((x/2) + 1 + 2x)?
Relevant for Exams:
