Question 26

Select the option that is related to the fourth number in the same way as the first number is related to the second number and the fifth number is related to the sixth number.

7: 42 :: ? : 110 :: 9 : 72

Solution

7: 42

7 ==> $$7\times(7-1)$$ = $$7\times6$$ = 42

9 : 72

9 ==> $$9\times(9-1)$$ = $$9\times8$$ = 72

? : 110

Let's assume 'y' in place of the question mark.

y ==> $$y\times(y-1) = 110$$

$$y\times(y-1) = 11\times10$$

$$y\times(y-1) = 11\times(11-1)$$

So y = 11

Hence '11' will come in place of the question mark.


Create a FREE account and get:

  • Free SSC Study Material - 18000 Questions
  • 230+ SSC previous papers with solutions PDF
  • 100+ SSC Online Tests for Free

cracku

Boost your Prep!

Download App