If 2x-y=10 and x/y=3, then x=?

A A-10

B 2

C 4

D 6

Solution

Correct Answer: Option D

2x-y=10...........i
এবং x/y=3
বা, x=3y

অতএব,(i)
2.3y-y=10
⇒ 6y-y=10
⇒5y=10
⇒ y=2
অতএব , (ii)
 x =3.2=6

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