You didn't mention what it was supposed to be bigger than. Multiples of 9 less than 60 are 9, 18, 27, 36, 45 and 54.
54
40
60
1 hour = 60 minutes. 2 hours = 120 minutes. So this shows that 60 minutes is less than 2 hours.
60
60
65
84
It is: 8*7 = 56
It's bigger - a decimetre is 10 centimetres (or 100 millimetres).
No, since 60 is (greater than 0 and) less than 122515 and all multiples of 122515 are greater than, or equal to, 122515. Neither is 60 a factor of 122515 (22515 a multiple of 60) since 60 is a multiple of 10 and all multiples of 10 end in a zero (ie the units digit is zero) but 122515 does not end in a zero and so cannot be a multiple of 10, nor 60.
The least commmon multiple is 60.