1.

Arithmetic mean of the following series is 20.5 Marks 10 15 20 x 30 35 No. of Students 4 6 10 5 3 2 Find the missing item.

Answer»

थडजगछखूगतखमठमठतझगदगझगजडजरडरडरडडथडदढत्रढत्रयढथडझढझढडझढलृमृ



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