Question

The sharks are fed three times a day. During the morning feeding, 2/15 tons of fish is fed.
During the afternoon feeding, the weight of fish fed will be 1/15 ton more than the fish fed during
the morning. If the total weight of fish fed in a day is 1/2 ton, how much is fed during the feeding at
night?

Answer 1

Answer:

Let the weight of the fish fed at night = x tons

In the morning, weight of the fish fed zm = 2/15 tons.

In the afternoon, 1/15 ton more fish fed during morning.

∴ Weight of fish fed in afternoon za = 2/15 + 1/15 = 3/15 tons

zm + za + x = 1/2 tons

∴ 2/15 + 3/15 + x = 1/2

∴ x = 1/2 - 5/15

∴  x = 3/6 - 2/6

∴ x  = 1/6 tons