A pelican caught 13 fish and a kingfisher caught 7 more fish than the pelican. If a fisherman caught 3 times the total amount of fish the pelican and kingfisher caught, how many more fish did the fisherman catch than the pelican?
The kingfisher caught 13 + 7 = <T>add(13, 7)=20 fish.
The pelican and kingfisher caught 13 + 20 = <T>add(13, 20)=33 fish
The fisherman caught 3 x 33 = <T>multiply(3, 33)=99 fish
The fisherman caught 99 - 13 = <T>subtract(99, 13)=86 more fish than the pelican.
