The average weight of 10 oarsmen in a boat is increased by 1.8 kg when one of the crew, who weighs 53 kg is replaced by a new man. Find the weight of the new man.  Choose the correct choice from the following answers.
A) 69
B) 72
C) 75
D) 71
E) None of them
Total weight increased =(1.8 x 10) kg =18 kg.   :. Weight of the new man =(53 + 18)= 
<gadget id="calculator">(53 + 18)</gadget>
<output>71</output>
71 kg.   Answer is 71
<result>D</result>
The average weight of 10 oarsmen in a boat is increased by 1.8 kg when one of the crew, who weighs 53 kg is replaced by a new man. Find the weight of the new man.