INVERSE PROPORTION
Remember:
- Inverse proportion is when one quantity is opposite to the other quantity. It is called inverse because one is the inverse or opposite of the other like when the one is increasing the other is decreasing.
QUESTION
1. 36matts / 9 weavers = 18 matts / N
36(N) = 9(18)
36N = 162
N = 162 ÷ 36
N = 9/2 or 4.5 weavers
2. 60km/hr / 50 minutes = N / 30 minutes
60(30) = 50(N)
1800 = 50N
1800 ÷ 50 = N
36 = N
N = 36 km/hr
3. 12 hours / 18 liters = N / 8 liters
12(8) = 18(N)
96 = 18N
96 ÷ 18 = N
16/3 or 5.34 = N
N = 5 hours and 20 minutes
Convert to minutes the decimal
ANSWER
- N = 4.5 weavers
- N = 36km / hr
- N = 5 hours and 20 minutes
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