IGCSE Mathematics 0580/41/M/J/20 Q1

In 2018, Gretal earned $32 000.
(i) She paid tax of 24% on these earnings.
Work out the amount she paid in tax in 2018.(ii) In 2019, Gretal’s earnings increased by 7%. Work out her earnings in 2019.
b. Gretal invests $5000 at a rate of 2% per year compound interest. Calculate the value of her investment at the end of 3 years.
c. One month, Gretal spent a total of $360 on presents.
She spent 1/5 of this total on presents for her parents.
She spent 2/3 of the remaining money on presents for her friends. She spent the rest of the money on presents for her sisters. Calculate the percentage of the $360 that she spent on presents for her sisters.d. Arjun earned $36 515 in 2019.
This was an increase of 9% on his earnings in 2018.Work out his earnings in 2018.
e.Arjun and Gretal each pay rent.In 2018, the ratio of the amount each paid in rent was Arjun : Gretal = 5: 7. In 2019, the ratio of the amount each paid in rent was Arjun : Gretal = 9: 13. Arjun paid the same amount of rent in both 2018 and 2019.Gretal paid $290 more rent in 2019 than she did in 2018. Work out the amount Arjun paid in rent in 2019.
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