Amir buys a camera for $250 and sells it for $200. Calculate his percentage loss.
- (a)Amir buys a camera for $250 and sells it for $200. Calculate his percentage loss.[2]
- (b)Meera invests some money at a rate of 2% per year simple interest. How many years does it take for her investment to double in value?[1]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2019). The mark or mark type is shown in brackets.
- [2] 20
- M1 for (250-200)/250 [× 100] oe
- or for 200/250 x 100 oe
- [1] 50
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