Sequences and Series
A.M. of 1,2,x,3 is 0, then x= _____.
Subba Rao started work in 1995 at an annual salary of Rs 5000 and received an increment of Rs 200 each year. In which year did his income reach Rs 7000?
If A and G be A.M. and GM., respectively between two positive numbers, prove that the numbers are A±(A+G)(A−G).
A sum of Rs 700 is to be used to give seven cash prizes to students of a school for their overall academic performance. If each prize is Rs 20 less than its preceding prize, find the value of each of the prizes.