Question

How many such pairs of letters are there in the word SUPERFLUOUS each of which has one letter less than the number of letters between them in the word as in English Alphabet?​

Answer 1

Overall total possible pairs are

= 11! / 2! 3!

It's too much

Basic is required

No mathematics here

Step-by-step

Wait for the attached file ,

SP , SL ,

UO ,

LO ,

US

So it requires a basic ability to solve the problem

Answered by an IIT JEE ASPIRANT and all India mathematics OLYMPIAD TOPPER in class 10th