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om subham pati from Dps ranchi, Ranchi
Subject :IMO    Class : Class 9

Choose the correct alternative that will continue the same pattern.

6, 11, 21, 36, 56, (......)

(A) 42

(B) 51

(C) 81

(D) 91
how???

Ans 1:

Nirmal joshi from New Beersheba, Pithoragarh
Class : Class 9
Answer is 81 as you will add the multiples of 5 after each no. 6+5=11 11+10=21 21+15=36 36+20=56 56+25=81

Ans 2:

Priyanshu from S. D. Memorial Sr. Sec. School, Gurgaon
Class : Class 9
Answer will be 81 because the series continues with a progression of table of 5 6+5=11 11+10=21 21+15=36 36+20=56 Then the next number which will be added is 25 then our series will be 56+25=81

Ans 3:

Rudra kumar from Jawahar Navodaya vidyalaya, Sherghati
Class : Class 9
6+5=11 ,11+10=21,21+15=36,36+20=56 next add 25 as by series than 56+25=81

Ans 4:

Nirmal joshi from New Beersheba, Pithoragarh
Class : Class 9
Answer is 81 as you will add the multiples of 5 after each no. 6+5=11 11+10=21 21+15=36 36+20=56 56+25=81

Ans 5:

Keshav Singla from Delhi Public School , Bathinda
Class : Class 5
Answer is 81 as we can see there is difference in numbers in table of 5

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