Hi keeshafey,

What it's trying to say is that in future shipments,

(The number of defective chips) / (Total chips) = {Defective chips (S1 + S2 + S3+ S4)} / {Total Chips (S1 + S2 + S3+ S4)}R.H.S = (2+5+6+4)/(5000 + 12000 + 18000 + 16000)

= 17/51000

On L.H.S side, you are given that (Total chips) = 60000

Therefore, (The number of defective chips) =

20Regards,

Technext

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