A:b = 3:4, b:c = 5:6, c:d = 11:9, then a:d=.......
pls explain with a solution
options are
a) 50:60
b) 55:72
c) 60:70
d) 65:75
Answers
Answered by
1
multiply all the ratio
a:d = 3×5×11:4×6×9
=> 55:72
option b
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