Question

Study the following information carefully and answer the given questions.

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 question below the rows of numbers are to be answered. The operations of numbers progress from left to right.

Rules:
i) If the odd number is following by a two digit even number then they are added to each other.
ii) If the odd number is following by a two digit odd number then the second number is to be subtracted from the first number.
iii) If the even number is following by a number which is a perfect square of a number then the second number is to be divided by the first number.
iv) If the even number is following by a two digit even number then the first number is to be multiplied by the second number. 16 400 15
157 34 91 25

Q. What is the result of the resultant of first row multiplied by the resultant of second row?

• A. 7.5
• B. 2.5
• C. 5
• D. 10
• E. None of these

Answer 1

The correct option is B 2.5

In first row 16 is an even number and 400 is a perfect square no. so apply condition iii $\frac{400}{16}=25$
Now 25 is an odd no. and next 15 is a two digit odd no. so apply condition ii 25-15 = 10
10 is the resultant of 1st row.
In 2nd row 157 is an odd no. and 34 is a two digit even no. so apply condition i 157 + 34 = 191
Now 191 is an odd no. and next 91 is a two digit odd no. so apply condition ii 191 – 91 = 100
Now 100 is an even no. and next 25 is a perfect square so apply condition iii $\frac{25}{100}=.25$
.25 is the resultant of the second row
Now multiply resultant of 1st from resultant of 2nd row $=.25\times 10=2.5$