x/a + a = x/b + b হলে x এর মান কত?

A ab

B a

C b

D a/b

Solution

Correct Answer: Option A

এখানে,
x/a + a = x/b + b
⇒ x/a - x/b = b - a
⇒ x(1/a - 1/b) = b - a
⇒ x = (b - a) / (1/a - 1/b)
⇒ x = (b - a) / {(b - a)/ab}
⇒ x = (b - a).ab / (b - a)
∴ x = ab

Solution

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