In each of the following question two row 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 is to be answered. The operations of numbers progress from left to right.
Rules.
(i) If an odd number is followed by another odd number, they are to be multiplied.
(ii) If an even number is followed by another even number, the first number is to be divided by the second even number.
(iii) If an even number is followed by the perfect square of an odd number the first number is to be subtracted from the second number.
(iv) If an odd number is followed by an even number, the two are to be added.
(v) If an even number is followed by an odd number, which is not a perfect square, the square of the odd number is to be added to the even number.
`{:(9,15,50=x),(12,25,24=y):}`
What will be the value of `x div y` ?

Options

A. 18
B. 8
C. 5
D. 6

Answer

C

Explanation

Resultant of the first row = x.

`= (9 xx 15) + 50`. (Applying (i) & (iv)]
`= 135 + 50 = 185 `
Resultant of the second row = y

`= (25 – 12) + 24`. [Applying (iii) & (iv)]
`= 13 + 24 = 37`
So, value of `(x div y)`
`= 185 div 37 = 5`