SSCBS

Doubt

In this question they were directly able to solve this using specfic values of the variable but in exam it is not like such values will magically appear in our mind. So how does one solve this during exam??

Please log in to comment and participate in discussions.

Comments (1)

basicallybhavesh

IIM Ranchi (IR 2)

MOD•10mos

Correct

We know that there are 4 consecutive numbers.

Let's randomly take bigger numbers: 5,6,7,8:

5^6 = 15,625

7^8 = much bigger than 15,625 for sure.

So, when we have this idea, we need to play with very small numbers. We also know that anything to the power 0 is 1.

I also know that 1 raised to the power anything is 1. I can play with even powers of -1 to get 1 too.

Hence, we can play with the numbers as described in the solution.

IPMAT/Algebra

Academic discussion and doubt solving for: Progression & Series, Inequalities, Linear Equation, Functions, Modulus, Minima & Maxima, Polynomials, Identities, Indices

1723Members

124

Online

Members can post and comment here, and get these posts in their Latest feed.