Question

9. if l : m = 1 1/2 : 1 3/4 and m : n = 2 1/3 : 4 1/5 find (I) l : n ; (ii) l : m : n.
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Answer 1

Answer:

1. I:n

11/2:41/5

( reciprocal )

11/2×5/41

55/82

2. I:m:n

given ,. m= 11/2+21/3

= 33+42/6

= 75/6

I:m:n

11/2:75/6:41/5

( reciprocal )

11/2×6/75×5/41

11/205