Question

Example 2: A man invests 100 at the end of 1971, * 200 at the
end of 1972,300 at the end of 1973,400 at the end of 1974, 500 at the end of
1975. If all interest accumulates at 5 per cent per annum, what will be his investment
amount at the end of 1976?
MA​

Answer 1

sorry I'll try next time