Find the ratio of a : b:c, if (a) a : b = 3:4 and bic=4:9. (b) a: b=5 : and 6: c=4:1, 1 1 a : b = : 1 and 6: c = 1: 2 3 ab
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Answered by
1
Answer:
To find a : b : c, b is made same in both the ratios. L.C.M of 4 and 5 is 20
a:b=
4
3
=
4×5
3×5
=
20
15
b:c=
9
5
=
9×4
5×4
=
36
20
∴ a:b:c=15:20:36
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Answered by
2
Answer:
To find a : b : c, b is made same in both the ratios. L.C.M of 4 and 5 is 20
a:b=
4
3
=
4×5
3×5
=
20
15
b:c=
9
5
=
9×4
5×4
=
36
20
∴ a:b:c=15:20:36
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