Invest R20000 for 10 years which attracts 5 percent for 3 years and 8 percent for 4 years. Calculate interest for remainder 3 years if investment paid out R44253.44 after 10 years.?

Invest R20000 for 10 years which attracts 5 percent for 3 years and 8 percent for 4 years. Calculate interest for remainder 3 years if investment paid out R44253.44 after 10 years.?
your mom would never get that much...