Question
Consider three numbers 'X', 'Y',
and 'Z' that are in the ratio 18:25:30. If the value of 'X' and 'Z' is decreased by 12.5%, and the value of 'Y' is raised by 12%, find the new ratio of 'X', 'Y', and 'Z'.Solution
ATQ,
Let the numbers 'X', 'Y' and 'Z' be '18k', '25k' and '30k', respectively. Required ratio = (0.875 × 18k) :(1.12 × 25k) :(0.875 × 30k) = 9:16:15Â
612, 487,?, 396, 388, 387
Find the missing number in the given number series.
1, 2, 6, 24, 120, ?What will come in place of the question mark (?) in the following series?
36, 85, ?, 230, 330, 451
Find the missing term in the series:
2, 5, 11, 23, 47, ?
What will come in place of the question mark (?) in the following series?
400, 841, 1202, ?, 1716, 1885
44   45    41   50    ?      59    23
...221, 100, 0, -81, ?
...900 Â Â Â 90Â Â Â 18Â Â Â ? Â Â Â Â 2.16Â Â Â Â 1.08
16, 20, 11, 27, ?, 38
37, 57, 82, ?, 147, 187