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Home / Doubts and Solutions/MAHARASHTRA OLD/Class 10/Mathematics

 In a survey conducted among 400 students of X standard in Pune district, 187 offered to join Science faculty after X std. and 125 students offered to join Commerce faculty after X std. If a student is selected at random from this group. Find the probability that the student prefers Science or Commerce faculty.

Asked by djmahavirndb 7th March 2017, 7:42 PM
Answered by Expert
Answer:
begin mathsize 14px style Total space number space of space students space equals space 400 space Students space who space joined space Science space faculty equals 187 space Students space who space joined space Commerce space faculty equals 125 Students space who space prefer space Science space or space Commerce space equals space 187 space plus space 125 space equals space 312 So comma space probability space that space students space who space prefer space either space Science space or space Commerce equals fraction numerator Number space of space students space who space prefer space Science space or space Commerce over denominator Total space number space of space students end fraction equals 312 over 400 equals 39 over 50 end style
Answered by Expert 8th March 2017, 8:13 AM
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