Question

- The number of match sticks contained in 50 match boxes is given below
Number of
40 42 43 44 45 48
Match sticks
Number of boxes
6.
7
12
9
10 6
(i) Using short cut method, find the mean number of match sticks per box.
(ii) How many extra match sticks are to be added to all the contents of 50 match boxes to
bring the mean exactly equal to 45 match sticks per box?
​

Answer 1

Answer:

200 in 50 boxes

and 14 match sticks extra

Answer 2

Answer:

200 in 50 boxes

and 14 match sticks extra

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