It could be
1 x 45
3 x 15
or
5 x 9 .
You can find out at Proofhouse.com in the Colt tables.
1, 3, 5, 9, 15 & 45.
Pythagora discovered time tables
The 23 time tables are a series of statements. There are no questions there.
Proofhouse.com has Colt sn tables.
You can find out at Proofhouse.com in the Colt tables.
15, 30, 45, 60 and so on.
None of the times tables equal 31.
Proofhouse.com has sn tables you can look at.
Download KCSE KCPE time tables at the related link below.
you use it for time tables and schedules
No.