Question
The ratio between two numbers is 3:4. If each number is
increased by 8, the ratio between then become 5:6, find the difference between numbers.Solution
Let first number be 3x and the second number is 4x. According to the question, => (3x + 8)/(4x + 8) = 5/6 => 18x + 48 = 20x + 40 => x = 4 Required difference = 4(4) – 3(4) = = 16 - 12 = 4
Find the wrong number in the given number series.
13, 20, 31, 44, 62, 80
Find the wrong number in the given number series.
71, 98, 123, 154, 191, 232
Find the wrong number in the given number series.
32, 50, 72, 98, 128, 160
182, 240, 306, 380, 462, 558
Find the wrong number in the given number series.
7, 15, 31, 57, 87, 127
Find the wrong number in the given number series.
3, 9, 27, 81, 162, 243
8Â Â Â Â Â 5Â Â Â Â Â Â 6.5Â Â Â Â Â 11.75Â Â Â Â Â 26Â Â Â Â Â 65
...12, 91, 172, 249, 328, 407
- Find the wrong number in the given number series.
9, 8, 18, 51, 208, 1045 556, 547, 483, 458, 242, 196