Question

the shark are fed three times a day..during the morning feeding,2/15tons 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 night​

Answer 1

If you want to change an active-voice sentence to passive voice, consider carefully who or what is performing the action expressed in the verb, and then make that agent the object of a by the... phrase. Make what is acted upon the subject of the sentence, and change the verb to a form of be + past participle.