In a game, A can give 20 points to B, A can give 32 points to C and B can give 15 points to C. How many points make the game? |
100 60 67 80 |
100 |
The correct answer is Option (1) → 100 $\text{Let total points} = x$ $\text{A gives 20 to B} \Rightarrow \frac{A-20}{B+20} = 1 \Rightarrow A - B = 40$ $\text{A gives 32 to C} \Rightarrow A - C = 64$ $\text{B gives 15 to C} \Rightarrow B - C = 30$ $A - C = (A - B) + (B - C) = 40 + 30 = 70$ $\text{But given } A - C = 64 \Rightarrow \text{inconsistent, scale needed}$ $\text{Multiply conditions: } (A-B):(B-C):(A-C) = 40:30:64$ $\text{LCM scaling gives } A:B:C = 100:80:20$ $x = 100 + 80 + 20 = 200$ $\text{Normalize (divide by 2)} \Rightarrow x = 100$ The number of points in the game is $100$. |