60 4. Find the value of the following: (i) 0.4% of 4 (ii) 25% of 120 m
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(i)
47
100
(ii)
9
20
(iii)
3
8
(iv)
8
125
(v)
19
500
(vi)
4
15
(vii)
2
3
(viii) 1
3
5
ANSWER:
We have the following:
(i)
47
100
=(
47
100
×100)% = 47%
(ii)
9
20
=(
9
20
×100)% =(9×5)%= 45%
(iii)
3
8
=(
3
8
×100)% =(
3×25
2
)%=(
75
2
)%=37
1
2
%
(iv)
8
125
=(
8
125
×100)%=(
8×4
5
)%=(
32
5
)%=6.4%
(v)
19
500
=(
19
500
×100)%=(
19
5
)%=3.8%
(vi)
4
15
=(
4
15
×100)%=(
4×20
3
)%=(
80
3
)%=26
2
3
%
(vii)
2
3
=(
2
3
×100)%=(
200
3
)%=66
2
3
%
(viii) 1
3
5
=
8
5
=(
8
5
×100)%=(8×20)%=160%
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