Find the difference between the average number of yoga class students from institutes A, B and C and the average number of swimming class students from institutes D and E.
The average number of yoga class students from institutes A, B and C = (26 + 34 + 30)/3 = 30 The average number of swimming class students from institutes D and E = (30 + 50)/2 = 40 Required difference = 40 – 30 = 10
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