Question

In the following questions, one of the following rules I, II, III, IV and V given below has been applied to the set of numbers given in each question. Find out which of the rules has been applied to the question and write its number on the answer sheet.
(I) Square the number and add the same number to it
(II) Divide the number by 2 and add 5 to the quotient
(III) Square the number and cube of the same number
(IV) Cube the number and add the same number to it
(V) Add 2 to the cube of the number
20, 42, 90

• A. I
• B. II
• C. III
• D. IV

Answer 1

The correct option is A I

Directions : In the following questions one of the following rules I II III IV and V given below has been applied to the set of numbers given in each question Find out which of the rules has been applied to the question and write its number on the answer sheet

Rules (I) Square the number and add the same number to it

(II) Divide the number by 2 and add 5 to the quotient

(III) Square the number and add cube of the same number

(IV) Cube the number and add the same number to it

(V) Add 2 to the cube of the number

Clearly the given set of number follow the rule

$4^2+4,6^2+6,9^2+9$