Question

For $9$ cows, $13$ kg $500$g of food supplement are required every day. In the same proportion, how much will be needed for $12$ cows?

Answer 1

Given ,$9$ cows need supplememts $=13\times 1000+500grams=13500$ grams

hence, $1$ cow need $=13500÷9=1500$

hence, $12$ cows needed$=1500\times 12$

$=18000grams$

$=18kg$