In each of the following questions 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 questions below the rows of numbers are to be answered. The operations of numbers progress from left to right.
Rules.
(i) If a two-digit odd number is followed by a two-digit odd number they are to be added.
(ii) If a two-digit even number is followed by a two - digit odd number which is a perfect square, the even number is to be subtracted from the odd number.
(iii) If a three-digit number is followed by a two-digit number the first number is to be divided by the second number.
(iv) If a prime umber is followed by an even number the 7 two are to be added.
(v) If an even number is followed by another even number the two are to be multiplied.
`{:(12,28,84),(37,22,18):}`
What is the sum of the resultant of the two rows ?

Options

A. 77
B. 87
C. 84
D. None of these

Answer

D

Explanation

Resultant of the second row `R_1 =34`

`=(12xx28) div 84 ` [Applying (v) & (iii)]
`=336 div 84 = 4`
Resultant of the second row `R_2`

`= (37 + 22 ) +18`. [Applying (iv) & (iv) again]
= 59 + 18 = 77
So, sum of the resultant of the two rows
`=R_1 +R_2 = 4 + 77 = 81`