A) 35 min.
B) 40 min.
C) 45 min.
D) 50 min.
Correct Answer: B
Solution :
[b] When distance is contant, then speed is inversely proportional \[{{S}_{1}}:\,{{S}_{2}}={{T}_{2}}:\,{{T}_{1}}\] \[4:\,16.5={{T}_{2}}:165\] \[or\,\,\frac{4}{16.5}=\frac{{{T}_{2}}}{165}\] \[{{T}_{2}}=\frac{165\times 4}{16.5}=40\,\,\min \]You need to login to perform this action.
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