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CBSE Class 11-commerce Answered

C.I             fricancy  10-20           4 20-30          x 30-40          2 40-50          1 Mean=25 find out  missing  fricancy   
Asked by Himanshu | 24 Aug, 2018, 01:03: AM
answered-by-expert Expert Answer
begin mathsize 18px style Find space the space mid space points space straight x subscript straight i apostrophe straight s space of space class use space formula fraction numerator sum for blank of space straight x subscript straight i space straight f subscript straight i over denominator sum for blank of space space straight f subscript straight i end fraction equals fraction numerator 15 cross times 4 plus 25 cross times straight x plus 35 cross times 2 plus 45 cross times 1 over denominator 4 plus straight x plus 2 plus 1 end fraction equals 25 solve space to space get space straight x pls space check space your space mean space value space provided space in space question end style
Answered by Arun | 24 Aug, 2018, 11:19: AM

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CBSE 11-commerce - Maths
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