three tuesdays of a month fall on even days .what day of the week was 21st day of the month?

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- Jun 24th 2007, 05:32 AMtoobamaths homework
three tuesdays of a month fall on even days .what day of the week was 21st day of the month?

- Jun 24th 2007, 06:20 AMSoroban
Hello, tooba!

What did you try?

Quote:

Three Tuesdays of a month fall on even days.

What day of the week was 21st day of the month?

Since there are three Tuesdays on even days, the calendar must look like this:

. . . $\displaystyle \boxed{\begin{array}{ccccccc}\text{Sun} & \text{Mon} & \text{Tue} & \text{Wed} & \text{Thu} & \text{Fri} & \text{Sat} \\

& * & \boxed{2} & * & * & * & * \\

* & * & 9 & * & * & * & * \\

* & * & \boxed{16} & * & * & * & * \\

* & * & 23 & * & * & * & * \\

* & * & \boxed{30} & & & & \end{array}}$

Got it?