### Brain Teasers

# Mr. and Mrs. Crazy: Petrol Shortage

Math
Math brain teasers require computations to solve.

Recently Mr. And Mrs. Crazy have heard the news about the petrol shortage. The king has introduced to the villagers petrol rationing according to the following system, based on the 3-digit number of each number-plate (000 to 999) of the cars in the village.

People could only buy petrol on certain days as follows:

Sunday: if each of the three digits was less than 6

Monday: if the 3-digit number was odd

Tuesday: if the sum of the three digits was greater than 10

Wednesday: if the 3-digit number was a multiple of 3

Thursday: if the sum of the three digits was less than 15

Friday: if at least two of the three digits were the same

Saturday: if the 3-digit number was less than 500

If Mr. and Mrs. Crazy could refuel their car on any day of the week, what is the number on their car's number-plate?

People could only buy petrol on certain days as follows:

Sunday: if each of the three digits was less than 6

Monday: if the 3-digit number was odd

Tuesday: if the sum of the three digits was greater than 10

Wednesday: if the 3-digit number was a multiple of 3

Thursday: if the sum of the three digits was less than 15

Friday: if at least two of the three digits were the same

Saturday: if the 3-digit number was less than 500

If Mr. and Mrs. Crazy could refuel their car on any day of the week, what is the number on their car's number-plate?

### Answer

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## Comments

Absolutley FANTASTIC!!! easy, but great!

yup... easy but great!

An original idea, well written and interesting context. Thanks!

Clever one. We come across several such simple number combinations, but don't think of the various possibilities as created by the author. Thanks.

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