Question
 Eight years from now, Kirti's age will be twice that
of her brother Kunal, but 6 years ago she was four times as old as Kunal was then. Find the present age of Kunal.Solution
Let the present age of Kirti =x and Kunal =y ATQ- After 8 years- X+8 = 2(y+8)   … (1) Before 6 years – x-6 = 4(y-6) x-6 =4y-24 x =4y-18         …. (2) put the value of x in Eq (1) 4y -18+8 =2y+16 4y -10 =2y+16 2y =26 y =13 years.
Find the wrong number in the given number series.
28, 40, 63, 98, 147, 224
Find the wrong number in the given number series.
21, 31, 11, 41, 1, 61- Find the wrong number in the given number series.
7, 11, 20, 45, 94, 194 2824Â Â Â Â 2314Â Â Â Â Â 1973Â Â Â Â 1759Â Â Â Â 1634Â Â Â Â 1574
Find the wrong number in the given number series.
32, 50, 72, 98, 128, 160
- Find the wrong number in the given number series.
118, 150, 178, 206, 238, 266 9Â Â Â Â Â Â Â Â Â Â Â Â Â 17Â Â Â Â Â Â Â Â Â Â 53Â Â Â Â Â Â Â Â Â Â 103Â Â Â Â Â Â Â Â 310Â Â Â Â Â Â Â Â 619
...Find the wrong number in the given number series.
3, 7, 22, 89, 445, 2677Find the wrong number in the given number series.
88, 110, 148, 198, 275, 396
120, 136, 111, 147, 93, 162, 81
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