Question

The 260th term of the series a,b,b,c,c,c,d,d,d,d,e,e,e,e,e,f,f,f,f,f,f,.Is:

Answer 1

Answer:

Step-by-step explanation:

number of a = 1

number of b = 2

number of c = 3

number of d = 4

.................

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we know, sum of natural numbers upto n is n(n+1)/2

if we add 1 to 22 , we get = 22(22+1)/2 = 253

and 22th term in alphabet is v

after that , w

hence, next 23 terms are only w

then also , 253 to 260 we get only w

so, 260th term is w.

Hope it helps you....