SECTION B Answer any four questions from this section.
a) Sixty students in a class took an examination in History and Science. If 12 of them
passed History only, 25 passed in both History and Science and 7 of them failed in both
subjects, find:
i. the number of students who passed in History;
ii. the probability of selecting a student who passed in Science;
iii. correct to the nearest whole number the percentage of students who passed​

"throngs rushed to the coastal area near the airport from which the plane had taken off, overloaded with relief supplies clemente wanted to make sure reached the victims of an earthquake in nicaragua."

science.

modern problems require modern solutions.

active voice: my father cut the tree.

passive voice: the tree was cut by my father.

active voice: people buy newspapers every day.

passive voice: newspapers are bought (by people) every day.

active voice: people have been using movies as political propaganda since world war ii.

passive voice: movies have been used as political propaganda since world war ii.

active voice: donna gave me my birthday present.

passive voice: i was given my birthday present (by donna). / my birthday present was given to me (by donna).

active voice: mom will leave the keys on the counter.

passive voice: the keys will be left (by mom) on the counter.

the words in parentheses are the agent of the passive voice and can be omitted when obvious, generic, or simply unnecessary.