If '×' represents division and '÷' represents multiplication, what is the value of 20 ÷ 4 × 5? -

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Problem-Solving By Substitution

Interchange Of Signs And Numbers

A. 25

B. 5

C. 4

D. 20

E. None of the above

Answer: A. 25

20 × 4 ÷ 5 = 80 ÷ 5 = 16, which is not an option. The correct interpretation leads to 20 ÷ 4 = 5, and then 5 × 5 = 25.

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