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A class consists of a number of boys whose ages are in A.P., the common difference being 4 months. If the youngest boy is just eight yrs. old and if sum of the ages is 168 yrs, find the number of boys in the class.

A class consists of a number of boys whose ages are in A.P., the common difference being 4 months. If the youngest boy is just eight yrs. old and if sum of the ages is 168 yrs, find the number of boys in the class.

Grade:12th Pass

2 Answers

SAGAR SINGH - IIT DELHI
879 Points
11 years ago

Dear student,

Use an=a+(n-1)d

Sum of an Ap can also be used.....

niharika singh
18 Points
11 years ago

the answer is = 16 students

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