If 6.4 is 80% of 20% of a certain number, what is the number?

If 6.4 is 80% of 20% of a certain number, what is the number?

A) 9
B) 36
C) 40
D) 81

From the SPCBL Assistant Manager (General) November 2026 – Preliminary (BSCS) exam, question 51 of 100.

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