What is a mark to space ratio? – McqOptions

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1.	What is a mark to space ratio?
A.	Ton÷Toff
B.	Ton÷(Ton- Toff)
C.	Ton÷2×(Ton*Toff)
D.	Ton÷2×Toff
Answer» B. Ton÷(Ton- Toff)

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