Question
Find the value of 'a' in the given data if the mean of
the given data is 21. 15, 18, 20, 19, 22, 24, 17, a, 25, 16Solution
Sum of each term of given data = 10 × 21 = 210 So, 15 + 18 + 20 + 19 + 22 + 24 + 17 + a + 25 + 16 = 210 Or, 176 + a = 210 Or, 'a' = 34 Hence, option C.
Who of the following group is facing south direction?
Read the directions carefully and answer the following question.
Six people, R, S, T, U, V and W are sitting around a circular table facing to...
How many persons are sitting between O and N when counted from the left of O?
How many persons sit between D and B, when counted from the left of D?
Which among the following pairs sit immediate left and immediate right of each other’s respectively?
Who among the following pairs sit on the same side?
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Who among the following person sits opposite to I?
Which of the following is correct?
Eight people are sitting around a circular table facing the centre. U is sitting between P and E. E is sitting third to the right of S. A sits between S...
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