10 Maths 2020 Quiz Weeks 1-3
Show all working in the spaces provided.
1. Calculate the following
a) 6% of $300
b) 150% of 300kg
c) 7.5% of $4000
2. Calculate the following percentage increases & decrease
a) 6% more than $300
b) 25% markup on 800kg c) 45% discount on $80
3. Calculate the following amounts of simple interest including the total.
a) $5000 @ 7% for 10 years
b) $50000 @ 8% for 7 years
4. Calculate both the final amount & compound interest for the following
a) $3000 at 20% interest for 4
b) $200000 at 4% interest for 18
years compounded monthly
years compounded weekly
d) 30% less than 500kg
c) $25000 @ 3% for 42 months
c)
$50000 at 7% interest for 9 years
compounded quarterly
5. Bruce is hoping to save for a new caravan. He is able to invest at 6.5% compounded monthly for 6 years. How
much does he need to invest for it to be worth $30 000 at the end of those 6 years.