Question
The average height of Nakul, Baneet, Preetam and Yash is
20 cm, while the average height of Nakul, Preetam and Yash is 16 cm. If height of Manish is 25% more than that of Baneet, then find the average height of Baneet and Manish.Solution
Total height of Nakul, Baneet, Preetam and Yash = 20 × 4 = 80 cm Total height of Nakul, Preetam and Yash = 16 × 3 = 48 cm Height of Baneet = 80 – 48 = 32 cm Height of Manish = 32 × (125/100) = 40 cm Required average = (32 + 40)/2 = 36 cm
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