Question
What is the ratio whose terms differ by 25 and the
measure of which is 2/7?Solution
Let the ratio be x : (x + 25). Then, => x/(x + 25) = 2/7 => 7x = 2x + 50 => x = 10 ∴  Required ratio = 10:35 = 2:7
2, 4, 16, 48, 240, 1440, 10080
Find the wrong number in the given number series.
63, 66, 57, 75, 51, 81
- Find the wrong number in the given number series.
25, 36, 50, 68, 92, 120 1, 18, 44, 81, 131, 198
Find the wrong number in the given number series.
11, 12, 67, 28, 219, 53
12, 3.6, 18, 0.72, 0.432, 0.3024
131, 132, 140, 166, 231, 356Â
Find the wrong number in given series.
1759, 1765, 1785, 2047, 2099, 2209
15, 27, 51, 99, 193, 387
Find the wrong number in given number series.
1116, 1135, 1158, 1187, 1224, 1278.