x/p+x/q = 1 সমীকরণে x এর মান কত?

A    p+q/pq

B    pq/(p+q)

C    pq

D    p+q

Solution

Correct Answer: Option B

 

x/p+x/q = 1

=> (qx + px)/pq = 1

=> x(p + q) =pq

=> x = pq/(p+q)

 

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