Question

53. The students of a class wrote an exam. 20% of the
boys and 30% of the girls failed in it. The numbe
of boys who passed in it was 30 more than that of
girls. A total of 74 students failed in it. Find the
strength of the class.
(a) 280
(b) 300
(c) 320
(d) 260​

Answer 1

Answer:

answer is b)300

Explanation:

so, the explanation is in the form of photo