Solar(photovoltaic) cells convert sunlight directly into electricity. If solar cells were100% efficient, they would generate about 1000 watts of power per square meter of surface area when exposed to direct sunlight. With lowerefficiency, they generate proportionally less power. Forexample, 10% efficient cells generate 100 watts of power in direct sunlight. Suppose you want to supply 1 kilowatt of power to a house by putting solar panels on its roof. For solar cells with the average power of 20 watts per square meter of solarpanels, how many square meters of solar panels would youneed? Assume you can make use of the average power from the solar cells(by, forexample, storing energy in batteries until it isneeded).

You would need _______ square meters of solar panels.

(Round to the nearest integer asneeded.)