The mean (average) weight of three students is $40 k g$ . One of the students Ranga weighs $46 k g$ . The other two students, Rahim and Reshma have the same weight. Find Rahims weight

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Solution

Given average weight of three students is $40 K g$
Then total weight of three students $=$ $40 \times 3 = 120 K g$
Given weight of one student Ranga is $46 k g$
Then total weight of Rahim and Reshma $=$ $120 - 46 = 74 K g$
Given weight of Rahim and Reshma is equal
So weight of Rahim $=$ $\frac{74}{2} = 37 K g$

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The mean (average) weight of three students is 40 kg. One of the students Ranga weighs 46 kg. The other two students, Rahim and Reshma have the same weight. Find Rahims weight

Given average weight of three students is 40KgThen total weight of three students=40×3=120Kg Given weight of one student Ranga is 46kg Then total weight of Rahim and Reshma =120−46=74KgGiven weight of Rahim and Reshma is equalSo weight of Rahim=742=37Kg

The mean (average) weight of three students is $40 k g$ . One of the students Ranga weighs $46 k g$ . The other two students, Rahim and Reshma have the same weight. Find Rahims weight