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Of the 3 numbers whose average is 22, the first is 3/8th the sum of other two. What is the first number?1). 162). 203). 224). 18 |
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Answer» Let the THREE number are x, y and z GIVEN x = [3(y + z)] /8 ⇒ y + z = 8x/3 Now as given AVERAGE of three numbers is 22, ⇒ x + y + z = 66 ⇒ x + 8x/3 = 66 ⇒ 11x = 198 ⇒ x = 18 ∴ First number is 18. |
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