Question
A is younger than B by 4 years. If the ratio of A and B
ages is 9:10 respectively, then find the age of A.Solution
If B’s age be x years, then A’s age be (x - 4) years. According to question, => (x – 4)/x = 9/10 => 10x – 40 = 9x => x = 40 Therefore A's age = 40 – 4 = 36 years
Find the wrong number in the given number series.
16.5, 31, 82.5, 165, 412.5, 825169, 224, 293, 385, 497, 629
1, 5, 40, 385, 5005, 85085
- Find the wrong number in the given number series.
27, 38, 52, 70, 94, 122 - In the given number series, find the wrong number.
3, 6, 12, 25, 48, 96, 192 Find the wrong number in the given number series.
120, 240, 180, 160, 80, 32
35, 44, 28, 53, 19, 66
164, 141, 122, 105, 92, 80
- Find the wrong number in the given number series.
50, 64, 90, 134, 190, 260 20, 95, 220, 275, 620, 895