Q-39 Find the mean and the median of the observation 15,22,18,27,31,21,14,36,25&34
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Q-39 Find the mean and the median of the observation 15,22,18,27,31,21,14,36,25&34.
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Q-40 Find the mean of the data given below by all the three method.
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Q-41 solve 2x+3y=11 and 2x-4y= -24 and hence find the value of ‘m’ for which y=mx+3.
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Q 44 Find thesun of first 22 terms of the AP 8,8,-2,……….
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Q-45 If the point A(6,1).B(8,2).C(9,4) and D(p,3) are the vertices of a parallelogram.taken in order. Find the vaiue of p.
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Q 46 find the point on the x-axis which is equidistant from (2,-5) and (-2,9).
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Q47 the decortive block shown in the given figure is made of two soilds a cude and a hemisphere the base of the block is a cude with edge 5cm and the hemisphere fixed on the top has a diameter of 4.2cm .find the total surface area of the block.
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Q48 Chits numbered from 1 to 20 are kept in a box and mixed thoroughly one chit is drawn at random from the box fim = nd the probability that the number on the chit is (1) an odd number (2) a prime numder (3) a multiple of 5.
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Q49 on balanced coin is tossed three times find the following probailites (1) A : Exactly 2 Head are reviced (2) B: At leats 2 Head are recevice (3)C: At the most 2 heads are recevice.