y = (5x/2) + 4 এবং 15x - 2 = 40 হলে, y = ?
Solution
Correct Answer: Option C
15x - 2 =40
⇒ 15x = 42
⇒ x = 42/15
এখন,
y = [{5(42/15)}/2] + 4
= (14/2) +4
= 7 + 4
= 11
⇒ 15x = 42
⇒ x = 42/15
এখন,
y = [{5(42/15)}/2] + 4
= (14/2) +4
= 7 + 4
= 11
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