**Question:**

If $x_{1}, x_{2}, \ldots ., x_{n}$ and $\frac{1}{h_{1}}, \frac{1}{h^{2}}, \ldots . . \frac{1}{h_{n}}$ are two A.P’s such that $x_{3}=h_{2}=8$ and $x_{8}=h_{7}=20$, then $x_{5} . h_{10}$ equals.

Correct Option: 1

JEE Main Previous Year Online April 15, 2018

**Solution:**