Question

Two rows of numbers are given. The resultant number in each row is to be worked out separately based on the following rules and the question below the rows of numbers is to be answered. The operation numbers progress from left to right.
Rules:
(i) If an odd number is followed by another composite odd number, they are to be multiplied.
(ii) If an even number is followed by an odd number, they are to be added.
(iii) If an even number is followed by a number that is a perfect square, the even number is to be subtracted from the perfect square.
(iv) If an odd number is followed by an even number, the second one is to be subtracted from the first one.
(v) If an odd number is followed by a prime odd number, the first number is to be divided by the second number.
27 18 3
21 x 9
If x is the resultant of the first row, what will be the resultant of the second row?
A. 63
B. 36
C. 3
D. 16

Answer 1

Answer:

1st row = 5 , second row = 11

Step-by-step explanation:

1st row⇒

67,12,11

67−12 = 55 (rule (iv))

55÷11 = 5 (rule (v))

Since x is the resultant of first row, therefore, x=5.

2nd row⇒

20,5,14

20+5 = 25 (rule (ii))

25−14 = 11 (rule (iv))

Hence, the resultant of 2nd row is 11.