A carriage wheel makes 1500 revolutions in going over a distance of
4.5km. Find the radius (Take = 3.14)
If the side is increased by 5%. Find present increase in area.
Find the area of circle whose diameter is 56cm.
Find the radius of circle whose area is 616cm?.
If the mean of 10, 12, S, X, 11, 9 is 9 find the value of X.
The mean of nine observations was found to be 35. Later on it was detected
that an observation with value 81 was misread as 18. Find the correct mean
of the observations.
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