0. Six men can build a 150 m wall in ten hours.
in four hours?
mon
9. Write each number as the difference between two
a) 15
b) 20
10.a) Find the HCF of 144 and 96.
도
b)
Find the LCM of 16 and 20.
3m
11. Find the shortest length of wood that can be cu
8 m or 12 m.
12. a) What number is not a factor of 12, is sma
perfect square?​