(x/2) + (y/2) = 3, x - y = 2 হলে (x, y) এর মান কত?

A (4, 2)

B (4, 6)

C (6, 4)

D (1, 2)

Solution

Correct Answer: Option A

(x/2) + (y/2) = 3
(x + y)/2 = 3
⇒ x + y = 6 ....................(1)
⇒ x - y = 2......................(2)

(1) + (2) ⇒
x + y + x - y = 6 + 2
⇒ 2x = 8
⇒ x = 4

(2) নং সমীকরণ হতে পাই,
x - y = 2
⇒ 4 - y = 2
⇒ - y = 2 - 4
⇒ - y = - 2
⇒ y = 2

∴ নির্ণেয় সমাধান (x,y) = (4,2)

Practice More Questions on Our App!

Download our app for free and access thousands of MCQ questions with detailed solutions