A) 4 : 9 : 5
B) 16 : 36 : 45
C) 16 : 36 : 20
D) 4 : 36 : 40
Correct Answer: B
Solution :
\[\therefore \] \[a:b:=2:3\] \[\Rightarrow \] \[{{a}^{2}}:{{b}^{2}}:=4:9=\frac{4}{9}:1\] and \[b:c=4:5\] \[{{b}^{2}}:bc=16:20=1:\frac{20}{16}\] \[\therefore \] \[{{a}^{2}}:{{b}^{2}}:bc=\frac{4}{9}:1:\frac{20}{16}\] \[=\frac{4}{9}:1:\frac{5}{4}\] \[=16:36:45\]You need to login to perform this action.
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