Question 232390
What are the years between 20 and 60 that are divisible by {{{7}}}?
{{{21/7 = 3}}}
{{{28/7 = 4}}}
{{{35/7 = 5}}}
{{{42/7 = 6}}}
{{{49/7 = 7}}}
{{{56/7 = 8}}}
The next one {{{63/7 = 9}}} puts me over {{{60}}}
Now add {{{1}}} to all these ages
{{{21 + 1 = 22}}}
{{{28 + 1 = 29}}}
{{{35 + 1 = 36}}}
{{{42 + 1 = 43}}}
{{{49 + 1 = 50}}}
{{{56 + 1 = 57}}}
Which age can you reach by counting by {{{5}}}'s?
{{{(49 + 1)/5 = 10}}}
So, Sandra must be 49 now