A farmer had 400 animals. 20% of them were cows and the rest were goats. He bought some more cows and goats. The number of goats increased by 20% and the number of cows increased by 40%. How many animals did he buy altogether?
Solution
Before more cows and goats were bought
Cows ----- 20% x 400 (animals) = 80
Goats ----- 80% x 400 (animals) = 320
After more cows and goats were bought
Cows ----- 80 x 40% = 32
Goats ----- 320 x 20% = 64
Total animals bought 32 + 64 = 96
Answer: He bought 96 animals altogether.
No comments:
Post a Comment