A factory makes tennis rackets and cricket bats. A tennis racket takes...
Let number of rackets made = x
And number of bats made = y
Therefore , the above L.P.P. is given as :
Maximise , Z = x +y , subject to the constraints : 1.5x +3y ≤ 42 and. 3x +y ≤ 24, i.e.0.5x + y ≤ 14 i.e. x +2y ≤ 28 and 3x +y ≤ 24 , x, y ≥ 0.
Here Z = 16 is maximum. i.e Maximum number of rackets = 4 and number of bats = 12.
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A factory makes tennis rackets and cricket bats. A tennis racket takes...
To determine the number of tennis rackets and cricket bats that must be made in order for the factory to work at full capacity, we need to consider the available machine time and craftsmans time.
Given:
- Tennis racket: 1.5 hours of machine time and 3 hours of craftsmans time
- Cricket bat: 3 hours of machine time and 1 hour of craftsmans time
- Maximum available machine time: 42 hours
- Maximum available craftsmans time: 24 hours
Let's solve this problem step by step.
1. Determine the maximum number of tennis rackets that can be produced:
- Since 1 tennis racket requires 1.5 hours of machine time, the maximum number of tennis rackets that can be produced in terms of machine time is 42/1.5 = 28.
- However, each tennis racket also requires 3 hours of craftsmans time. So, the maximum number of tennis rackets that can be produced in terms of craftsmans time is 24/3 = 8.
- The factory can only produce the number of tennis rackets that satisfies both conditions, which is the smaller value between 28 and 8. Therefore, the maximum number of tennis rackets that can be produced is 8.
2. Determine the maximum number of cricket bats that can be produced:
- Since 1 cricket bat requires 3 hours of machine time, the maximum number of cricket bats that can be produced in terms of machine time is 42/3 = 14.
- However, each cricket bat also requires 1 hour of craftsmans time. So, the maximum number of cricket bats that can be produced in terms of craftsmans time is 24/1 = 24.
- The factory can only produce the number of cricket bats that satisfies both conditions, which is the smaller value between 14 and 24. Therefore, the maximum number of cricket bats that can be produced is 14.
3. Determine the number of tennis rackets and cricket bats that must be made:
- Since the factory can only produce 8 tennis rackets and 14 cricket bats, the factory must make 8 tennis rackets and 14 cricket bats in order to work at full capacity.
Therefore, the correct answer is option 'B': 4 tennis rackets and 12 cricket bats.