Question

12. Maria, Carolina and Pedro
receive $800 from their
grandmother in the ratio
Maria: Carolina: Pedro = 7:5:4.
(a) Calculate how much money each
receives.
(b) Maria spends of her money and then
invests the rest
for two years at 5% per year simple
interest.
How much money does Maria have at the
end of the two years?
(c) Carolina spends all of her money on a
hi-fi set and two years
later sells it at a loss of 20%.
How much money does Carolina have att
the end of the two years??
(d) Pedro spends some of his money and
at the end of the two
years he has $100.
Write down and simplify the ratio of the
amounts of money
Maria Carolina and Pedro have at the end of these two years​

Answer 1

Answer:

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