CBSE Class 11-science Answered
how many selections can be made by choosing 6 letters at a time from the word-PROPORTION
Asked by | 03 Jul, 2009, 06:56: PM
Expert Answer
number of selection = 10 C6 = 10C4 = 10 x 9 x 8 x 7 / 1 x 2 x 3 x 4
= 210
Answered by | 04 Jul, 2009, 04:16: PM
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