Rahim and Karim each fire 20 shots at a mark and agree to register 4 points for every hit and to deduct 3 points for every miss. One hits the mark 12 times , the other 8 times . What are their separate scores ?
Created: 6 years ago |
best des
Let,
Rahim market 12 times, so he misses 20-12 = 8 times
Karim market 8 times, so he misses 20 - 8 = 12 times
Rahim's point= 12 × 4 - 8 × (-3) = 48 - 24 = 24
Karim's point= 8 × 4 - 12 × (-3) = 32 - 36 = -4
So theirs points (24, -4)
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