2x+3y =36 এবং 2x+y = 16 হলে, (x,y) এর মান কত? 

A (2 , 10)

B (3, 10)

C (3, 5) 

D (6, 10) 

Solution

Correct Answer: Option B

এখানে , 2x+3y =36 ---(1)
          2x+y=16 -----(2)
------------------------------
 বিয়োগ করে পাই 2y=20
                  ∴ y=10

y এর মান  (1) নং এ বসাই
2x+3×10 =36
or,2x=6
  ∴ x=3

  অতএব (x,y) =(3,10)

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