যদি 2x = 4y = 8z এবং \(\frac{1}{2x}+\frac{1}{4y}+\frac{1}{4z}=4\) , তাহলে x এর মান কত?

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HTET TGT Social Studies 2020 Official Paper

Answer 1

প্রদত্ত:

2x = 4y = 8z

\(\dfrac{1}{2x}+\dfrac{1}{4y}+\dfrac{1}{4z}=4\)

গণনা:

2x = 4y = 8z

⇒ 2x = 22y = 23z

⇒ x = 2y = 3z

\(\dfrac{1}{2x}+\dfrac{1}{4y}+\dfrac{1}{4z}=4\)

⇒ \(\dfrac{1}{2x}+\dfrac{1}{2x}+\dfrac{3}{4x}=4\)

⇒ 7/4x = 4

∴ x = 7/16

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