Question 10

The average weight of two players P and Q of a football team is 38 kg. The average weight of P, Q and their coach T is 49 kg. What is the weight (in kg) of coach?

Solution

Let weight of P, Q and T be $$x,y,z$$ kg respectively.

Average weight of P and Q = $$\frac{x+y}{2}=38$$

=> $$x+y=76$$ ------------(i)

Similarly, $$x+y+z=147$$ -----------(ii)

Subtracting equation (i) from (ii), we get :

=> $$z=147-76=71$$

$$\therefore$$ Weight (in kg) of coach = 71 kg

=> Ans - (A)

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