1.the mean is 10 2. the median is 10 3. the mode is 9
A.1 only B. 2 only C. 3 only D. 1 and 3 only E. 2 and 3 only
- During a season, the goals scored by a school , football team in 20 matches were as follow;
Goals scored in a match 0 1 2 3 4 5
Frequency 2 6 5 3 3 1
The mean number of goals scored was
A.1 B.2 C.2.1 D.2.5 E.3
7.The mean of five numbers is 10 and the mean of two of them is 13. The mean of the
remaining three is
A. 7 B.8 C. 12 D.23 E.24
- There are seven numbers arranged in row, whose mean is 11. The mean numbers of first four
. If a:b = 5:3 , then 3a+ 4b: 4a+3b is
A. 27:36 B. 29:27 C. 27:29 D. 26:29 E. 17:19
- If 2x +3y:2x+y=3:2, then x:y=……….
A. 3:2 B. 2:3 C. 4:3 D. 3:4 E. None of them
- The cost of 40 pens is k. 360 and the cost of 30 pencils is k. 90. The ratio of the cost of a
pen to that of a pencil is
A. 1:3 B. 1:4 C. 3:1 D. 4:1 E. 16:3
- The ratio of the area of a circle of radius 7 cm to the area of a circle of radius 14 cm is
A. 1:2 B. 2:3 C. 3:5 D. 4:9 E. 1:4
- If the ratio of the areas of two circles is 49:25 , then the ratio of the diameters
