Chapter 9, Problem 7MCQ

To determine

Tofind:Thenumber of acres covered by forest fire after 24 hours

Answer to Problem 7MCQ

  $3^{12}$

Explanation of Solution

Given information:

Hours	2	4	6	8	10
Area consumed	$3^1$	$3^2$	$3^3$	$3^4$	$3^5$

Calculation:

As the area covered triples after every two hours

Let’s extend the table till 24 hours-

Hours	2	4	6	8	10	12	14	16	18	20	22	24
Area consumed	$3^1$	$3^2$	$3^3$	$3^4$	$3^5$	$3^6$	$3^7$	$3^8$	$3^9$	$3^{10}$	$3^{11}$	$3^{12}$

Area covered after 1 day (24 hours) $=3^{12}$