# Crazy Math

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

Solve this tricky problem?

### 4 guesses to Crazy Math

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• sugumar

Nope.. 100 cent != 10 cent * 10 cent, it is
100 cent = (10 times (10 cents))

so, 1 dollar = 100 cent
= 10 times 10 cent
= 10 * (1/ 10 dollar)
= 1 dollar

• Jim

I don’t know exactly what the problem wants, but in line 2 one cannot multiply 10 cent pieces by 10 cent pieces. 10 cent is really .10, because cent is 1/100 of a dollar. So, 10 cent= 10 x 1/100 = .1. Line two then really states .1 x .1 (which equals .01). Line 3 has the same problem as line two except 1/10 dollar is .10. Thus .10 x .10 = .01. So the problem should go 1 dollar = 100 cent = 10 x 10 cent = 1 x 1 dollar = 1 dollar = 100 cent. The conclusion therefore is wrong.

• Dude

You are correct Sugumar.

Step three is incorrect.

You are today’s winner.

• Cerberus

Your problem is instantly converting from one set of units with no changes to the rest of the equation