Answer:
350 units
Explanation:
The computation of the number of Cs is needed is shown below;
The requirement of Ps = 40
Ps still = 15
So, the Net of Ps needed is
=40 - 15
= 25
Bs needed for 25 units of P is
= 3 × 25
= 75
And, B units still = 10
So, the Net of B units needed is
= 75 - 10
= 65
So, Cs needed for 65 units of B is
= 4 × 65
= 260
Cs needed directly for every unit of P is
= 1 × 4
= 4
hence , total Cs needed for 25 units of P is
= 4 × 25
= 100
Now
Total Cs required is
= 260 + 100
= 360
And, C units still = 10
So, the Net Cs needed is
= 360 - 10
= 350 units