Question
The average height of 8 boys in a basketball team is 180
cm. If the tallest boy leaves, the average becomes 175 cm. Find the height of the boy who left.Solution
Let the height of the boy who left be ‘x’ cm. So, x + (180 – 5) × 7 = 8 × 180 x + 175 × 7 = 1440 x + 1225 = 1440 x = 1440 – 1225 x = 215 cm So, height of the boy who left was 215 cm.
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