27.
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If 3(x - y) = 27 and 3(x + y) = 243, then x is equal to:
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Answer: Option C
Explanation:
3x - y = 27 = 33
x - y = 3 ....(i)
3x + y = 243 = 35
x + y = 5 ....(ii)
On solving (i) and (ii), we get x = 4.
Title : Surds And Indices Q27
Description : 27. If 3 ( x - y ) = 27 and 3 ( x + y ) = 243, then x is equal to: A. 0 B. 2 C. 4 D. 6 Answer: Op...
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