The fourth proportion of 5,15,20 is – McqOptions

MCQOPTIONS

1.	The fourth proportion of 5,15,20 is
A.	30
B.	25
C.	60
D.	\[{{a}_{1}}:{{a}_{2}}={{b}_{1}}:{{b}_{2}}\]
Answer» D. \[{{a}_{1}}:{{a}_{2}}={{b}_{1}}:{{b}_{2}}\]

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