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1). 452). 1003). 904). 35 |
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Answer» As we know AVERAGE = SUM of all the observation/total number of observation Average of (A, B) – Average of (B, C) = 45 ⇒ (A + B)/2 - (B + C)/2 = 45 ⇒ A + B - B - C = 45 × 2 ⇒ A - C = 90 ∴ DIFFERENCE between A and C = 90 |
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