Question

10 kg of wheat is required for 40 people how much weight is required for 100 people

Answer 1

if 40 people required = 10 kg of wheat

then 1 people required = 1/4 kg of wheat

then 100 people required = 1/4 *100 = 25 kg of wheat

Answer 2

using unitary method
40people-------10kg
1. ------10/40 kg
100 people --------
$\frac{10}{40} \times 100 = 25$