A) 5:7
B) 7:5
C) 3:6
D) 6:3
Correct Answer: B
Solution :
\[{{S}_{3rd}}=10+\frac{10}{2}(2\times 3-1)=35\,m\] \[{{S}_{2nd}}=10+\frac{10}{2}(2\times 2-1)=25\,m\Rightarrow \frac{{{S}_{3rd}}}{{{S}_{2nd}}}=\frac{7}{5}\]You need to login to perform this action.
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