the average weight of 6 men is 68.5kg if it is known that two men weigh 60kg each.find the average weigh of other
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Answered by
4
let,
the weight of six men be a,b,c,d,e,f. kgs
the average weight = sum of all weights / number of persons .
=> a+b+c+d+e+f/6=68.5kg.
according to the question;
two men weigh 60 kg each .
60+60+c+d+e+f/6=68.5
so....
120+c+d+e+f= 68.5*6
120+c+d+e+f = 411
c+d+e+f= 411-120
c+d+e+f= 290
so ... average of others
=>c+d+e+f/4
=>290/4
= 72.5
hope this may help you. if it is correct please mark me brainliest.
the weight of six men be a,b,c,d,e,f. kgs
the average weight = sum of all weights / number of persons .
=> a+b+c+d+e+f/6=68.5kg.
according to the question;
two men weigh 60 kg each .
60+60+c+d+e+f/6=68.5
so....
120+c+d+e+f= 68.5*6
120+c+d+e+f = 411
c+d+e+f= 411-120
c+d+e+f= 290
so ... average of others
=>c+d+e+f/4
=>290/4
= 72.5
hope this may help you. if it is correct please mark me brainliest.
Answered by
1
Answer:
72.75 kg
Step-by-step explanation:
The total weight of the 6 men is 68.5 x 6 = 411 kg
The total weight of two men = 60 + 60 = 120 kg
Excluding this from the total weight -> 411 – 120 = 291 kg the total weight of the remaining 4 men.
Hence the average weight of the remaining 4 men is 291 / 4 = 72.75 kg
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