Question

which of the following alternatives will will fit in place of M?

255 , 3610, 4915, M, 8125

OPTIONS

1)5100
2)5420
3)6420
4)6422

answer it with slight explanation. ​

Answer 1

||✪✪ QUESTION ✪✪||

which of the following alternatives will will fit in place of M ?

255 , 3610, 4915, M, 8125

OPTIONS

1)5100

2)5420

3)6420

4)6422

|| ✰✰ ANSWER ✰✰ ||

we have to Complete The series with Right pattern ..

As, we can see in our Series 255 , 3610, 4915, M, 8125 difference b/w the Numbers is different .. So, we have to Think of something Else.

Lets Try to Break All The Number is Two parts :-

→ 255 = 25 | 5 = 5² | 5*1

Similarly,

→ 3610 = 36 | 10 = 6² | 5*2

→ 4915 = 49 | 15 = 7² | 5*3

and, Last one,

→ 8125 = 81 | 25 = 9² | 5*5

As we can see now, 5,6,7,M ,9 are in Series with +1, and other half is Multiple of 5.

with This Now, we can Easily See That :-

→ M = (7+1)² | 5*4

→ M = 64 | 20

→ M = 6420 (3) (Ans).

Hence, our Correct Series is :- 255 , 3610, 4915, 6420, 8125 , 10030 ______ So on.

꧁____________________꧂

Answer 2

Therefore,

M = 6420

Option 3) is correct.