Subject
Quantitative Aptitude
Topic
General Formula
What is the average (arithmetic mean) of x2- 2x - 3 , 3x2- 2x - 3 and 30 - 4x2?
What is the average (arithmetic mean) of x2- 2x - 3 , 3x2- 2x - 3 and 30 - 4x2?
ক)
(8x2+ 4x + 24) / 3খ)
(8x2+ 24)গ)
(24 - 4x) / 3ঘ)
-12Explanation
(x 2 - 2x - 3) + (3x 2 - 2x - 3) + (30 - 4x 2 ) = x 2 - 2x - 3 + 3x 2 - 2x - 3 + 30 - 4x 2 = 24 - 4x গড় = (24 - 4x)/3Related questions
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