JEE Main Mathematics question
Suppose be an arithmetic progression of natural numbers. If the ratio of the sum of first five terms to the sum of first nine terms of the progression is and , then the sum of the first ten terms of the progression is equal to
Answer: (B)
Solution
gives , so .
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account