যদি -2 ≤ x ≤ 2 and 3 ≤ y ≤ 8 তবে কোনটি সঠিক?

A 1 <= y-x <= 10

B 1 <= y-x <= 5

C 5 <= y-x <= 6

D কোনোটিই নয়

Solution

Correct Answer: Option C

এখানে -2<= x <=2……. (1)
and 3<= y <=8………..(2)
(2)-(1) হতে পাই, 5 <= y - x <= 6.

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