Question

. A student on his birthday distributed on an average
5 chocolates per student. If on the arrival of the
teacher and the headmaster to whom the student
gives 10 and 15 chocolates respectively, the average
chocolate distributed per head increase to 5.5, what
is the strength of the class?
(a) 28
(b) 30
(c) 32
(d) None​

Answer 1

Answer:

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