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Nishchay Maurya

· started a discussion

· 1 Months ago

Wrong answer given (Question:130032.0)

y will be positive, so, x

Question:

DIRECTION: In the given question two equations numbered I and II are given. You have to solve both the equations and Give answer if


I. 3x - 4y = 8

II. 7x - 16y = 62

Options:
A)

If x < y

B)

If x > y

C)

If x ≥ y

D)

If x ≤ y

E)

If x = y or relationship between x and y cannot be established.

Solution:

Ans: (b) 

I. 3x - 4y = 8 (1)

II. 7x - 16y = 62 (2)

(2) - 4 x (1) we get

x =  - 6

Putting the value of x in equation

(1) we get

3 x (- 6) - 4y = 8

⇒ 4y = 8 + 18 = 26

⇒ y =  - 6.5

Clearly, x > y

Knowledge Expert

· commented

· 1 Months ago

We made the required correction. Team TR
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