Following data refers to an automat and a centre lathe, which are being compared to machine batch of parts in a manufacturing shop
|
|
Automat
|
Center Lathe
|
|
Machine Set-up Time I min
|
120
|
30
|
|
Machine Set-up Cost in Rs/min
|
800
|
150
|
|
Machining Time per piece in min
|
2
|
5
|
|
Machining Cost in Rs/min
|
500
|
100
|
Automat will be economical if the batch side exceeds
(a) 28 (b) 32 (c) 61 (d) 75