A is younger than B by 4 years. If the ratio of A and B ages is 5:7 respectively, then find the age of A.
If B’s age be x years, then A’s age be (x - 4) years. According to question, => (x – 4)/x = 5/7 => 7x – 28 = 5x => x = 14 Therefore A's age = 14 – 4 = 10 years
9, 21, 67, 273, 1371, ?
2556 636 156 ? 6
4 5 12 39 160 ?
...2187, 1458, 972, ?, 432, 288
Look at the below pattern and complete the series: 11, 15, 22, 26, 33, 37, 44, ?
1 1 84 27 981
...Complete the series.
19, 23, 26, 30, 33, ?
95 186 376 748 1500 ?
...12 7 10 25 107 ?
...22 62 178 522 1550 ?
...
