x/a + x/b = 1 সমীকরনে x- এর মান কত?
Solution
Correct Answer: Option B
x/a + x/b = 1
⇒ x ( 1/a + 1/b) = 1
⇒ x {(a + b)/(ab)} = 1
⇒ x = ab/a +b
⇒ x ( 1/a + 1/b) = 1
⇒ x {(a + b)/(ab)} = 1
⇒ x = ab/a +b
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