Question

9 cows 13 kg 500 gram of food supplements are required everyday in the same proportion how much will be needed for 12 cows give me a simple trick of this answer

Answer 1

13500/9*12
》18kg
This is solved by Unitary method
.....................

Answer 2

For 9 cows total food require is 13.5 kg 
for 1 cow = 13.5/9
for 12 cows = (13.5/9)×12 = 18kg 

i hope this will help you

MARK AS BRAIN LIST