 
 <prompt> A rectangle has a length of 40 meters and a width of 20 meters. A similar smaller rectangle has half the length and width of the big rectangle. What's the area of the smaller rectangle?

Translation to Hausa:
Wata murabba'in da yawan 40 mita da kuma tsawon 20 mita. Wani murabba'in mai sauki da yawan yana gaba da nisa da tsawon da murabba'in mai sauki. Me ya sauki da murabba'in mai sauki? <response>: The length of the smaller rectangle is 1/2*40 = 20 meters.
The width of the smaller rectangle is 1/2*20 = 10 meters.
Since the area of a rectangle is found by multiplying the length times the width, the total area of the smaller rectangle is 20*10 = 200 meters square.

The final answer: 200. 