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madhu sudhan

· started a discussion

· 1 Months ago

how to learn this chapter (Question:170193.4)

plz send a link

Question:

DIRECTIONS:  In each of the following questions, two rows of numbers are given. The resultant number of each row is to be worked out separately based on the following rules and the question below the row of numbers is to be answered. The operations of numbers progress from left to right,


Rules:


(i) If an odd number is followed by a 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, which is a perfect square, the even number is to be subtracted from the perfect square.

(iv) If an odd number is followed by a prime number, the first number is to be divided by the second number.

(v) If an odd number is followed by an even number, the second one is to be subtracted from the first one.


64    55   17

81    32   2t


If t is the resultant of the first row, what is the resultant of the second row?

Options:
A) 9 
B) 7 
C) 56
D) 81 
E) 35
Solution:

Ans: (e) 

In the first row,

The resultant of the first two numbers = (64 + 55) = 119

The resultant of the resultant of the first two numbers and the last number = 119 \(\div\) 17 = 7 = t

In the second row,

The resultant of the first two numbers = (81 - 32) = 49 

∴ The resultant of the resultant of first two numbers and the last number = 49 – 14 = 35. 

Knowledge Expert

· commented

· 1 Months ago

Dear student,
Please be specific and clear in asking your doubt.

Best wishes
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