1.

1). 452). 303). 154). 48

Answer»

? Average of three numbers is 112

This means sum of 3 numbers is = 112 × 3 = 336

Let the first number be X

Then X = (1/6) × (Sum of other TWO numbers) = (1/6) × (336 - X)

⇒ X + X/6 = 336/6

⇒ X = 336/7 = 48

∴ First number = 48



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