### Brain Teasers

# Two Numbers

Trick
Trick brain teasers appear difficult at first, but they have a trick that makes them really easy.

One day, Bob came up to Paul and said, "I bet if you say two numbers and I multiply them together, I can say the answer in less than five seconds."

"Okay," replied Paul, "23,904,888,112 times 209,674,999,109."

Bob won the bet fairly. How did he do it?

(There are two alternate answers)

"Okay," replied Paul, "23,904,888,112 times 209,674,999,109."

Bob won the bet fairly. How did he do it?

(There are two alternate answers)

### Answer

Answer one - Bob worked out the equation (this took him much longer than 5 seconds), then recited the answer to Paul (this took him less than 5 seconds).Bob said he could say the answer in less than 5 seconds. FINDING the answer was not included in the time limit.

Answer two - Bob simply said, "The answer."

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