1.

The sum of the first and the third term of a geometric progression is 15 and the sum of its first three terms is 21. Find the progression. (a) 3,6,12… (b) 12, 6, 3... (c) Both of these (d) None of these 

Answer»

Correct option (c) Both of these

Explanation:

The answer to this question can be seen from the options. Both 3, 6, 12 and 12, 6, 3 satisfy the required conditions— viz, GP with sum of first and third terms as 15.



Discussion

No Comment Found

Related InterviewSolutions