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6,24,60,120,210,336,?

Read Solution (Total 3)

Its the series:
6=1.2.3,
24=2.3.4,
60=3.4.5 and so on...
so answer is 504=7.8.9
13 years agoHelpfull: Yes(12) No(0)

diffrence b/w 6 and 24 is 18 and remainaing diffrences are 36,60,90,126.
now again consider the diffrece of diffrence is 18 and 36 is 18 and remaining 36 and 60 is 24 remaing are 30,36,42
here diff is same 6 b/w all numbers
13 years agoHelpfull: Yes(6) No(2)
504 is the answer
13 years agoHelpfull: Yes(2) No(2)

TCS Other Question

Anoop managed to draw 7 circles of equal radii with their centres on the diagonal of a square such that the two extreme circles touch two sides of the square and each middle circle touches two circles on either side. Find the ratio of the radius of the circles to the side of the square.
1) [2+ 7sqrt(2)]:1
2) 1:[2+ 6sqrt(2)]
3) 1:[2+ 7sqrt(2)]
4) 1:(4+ 7sqrt(3)]
Fifty minutes ago it was four times as many minutes past 3'o clock, how many minutes is it to six' o clock??