Question

the average weight of 4 men is increased by 5 kg when one of them who weighs 100 kg is replaced by another man what is the weight of new man​

Answer 1

Answer:

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50

Answer 2

Answer:

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Step-by-step explanation:

Assume

X= average weight

A1= weight of first person

A2=weight of 2nd person, etc

A10= 58kg

B=the weight of new man

first equation

—-> 10X=A1+A2+A3 … +A9+A10

Second equation

—-> 10(X+1.5)=A1+A2+A3…+A9+B

Substract second eqt with first eqt, we’ll get

15= B-A10

since A10 is 58, then

B=15+58=73