self Maths Puzzle

465 coins consist of one-rupee, 50-paise and 25 paise coins. Their values are in the ratio 5:3:1. Find the number of each type of coins respectively is

Read Solution (Total 3)

self Other Question

I have some doubts in the answer of todays puzzle on 18/9/12. you are given there are two positive roots.But p(0) =4 and when you give any values > 0 for x there is no sign change.so intermediate value theorem there will be no roots. also I think that Descartes rule of sign doesn"t assure the roots. please clarify my doubts. I expect your valuable comments A batsman makes a score fo 58 runs in the 15th innings and thus increases his average by 3 runs. What is the average after 15th inning