Q.1 Solve
the following question :-
a) Write all the factors
of the given numbers and list their common factors.
(1) 12, 16 (2) 21, 24 (3) 25, 30 (4) 24, 25
(5) 56, 72
b) If large square beds of equal size are to be made for
planting vegetables on a plot of land 18 metres long and 15 metres wide, what
is the maximum possible length of each bed?
c) Two ropes, one 8 metres long and the other 12
metres long are to be cut into pieces of the same length. What will the maximum
possible length of each piece be ?
d) Find
out the LCM of the following numbers.
(1) 9, 15 (2) 2, 3, 5 (3) 12, 28
(4) 15, 20 (5) 8, 11
e)Find the HCF of the following numbers.
(1) 45, 30 (2) 16, 48 (3) 39, 25 (4) 49,
56 (5) 120, 144