ajay patwal Oct 19th, 2012 ans= 25 bcoz, 3*3=9 3*6=18 3*7=21 5*5=25 5*4=20 so like(3*6 and 3*7 it will be 5*4 and 5*5 mens increment by 1)

smitha G.V Mar 10th, 2014 ans:15 Because 3*3=9 3*6=18 3*7=21 5*5=25 5*4=20 5*3=15(i.e. in case of 3 it gets incremented in case of 5 it gets decremented)

sana Mar 20th, 2014 if v take 2 series...9,21,20..... 18,25,? 9+(3*3)=18 21+(2*2)=25 20+(1*1)=21 ans :21

JIGAR PATEL Apr 2nd, 2016 Ans= 25 because, 3*3=9 3*6=18 3*7=21 5*5=25 5*4=20 so like (3*6 and 3*7 it will be 5*4 and 5*5 means increment by 1)

Abhigyan Apr 2nd, 2016 Answer is 14. My calculation is 9 *(1)=9 9 *(2)=18 18+(3)=21 21+(4)=25 25-(5)=20 20-(6)=14

## 9,18,21,25,20, What is the next number in the above Sequence?

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