​$$\text{Find the value of } 80^{-2} \div 80^{15} \times 80^{-10}$$​​

Correct option is D

Given:
​$$80^{-2} \div 80^{15} \times 80^{-10}$$​
Formula Used:

$$a^m \div a^n = a^{m-n},a^m \times a^n = a^{m+n}, a^{-k} = \dfrac{1}{a^k}$$​​

Solution:
​$$80^{-2} \div 80^{15}\times 80^{-10} = 80^{-2-15} \times 80^{-10}$$​​
​$$80^{-17} \times 80^{-10} = 80^{-17-10} = 80^{-27}$$​​