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CBSE - Aptitude Mathematics
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Practice Question
Aptitude Mathematics
.
Aptitude Mathematics
The mean deviation about the mean for the following series-10,13,22,18,15,24 is
1.17.15
2.26.32
3.6.33
4.4.33
Correct Answer: 4
.
Related Questions
Aptitude Mathematics
1
A heap of stones can be made up into groups of 21. But when made up into groups of 16,20,25 and 45, there are 3 stones left in each case. Hence, the number of stones in the heap is
1. 7103
2. 7201
3. 7303
4. 7003
Correct Answer: 2
2
The sum of upper class boundary and the lower class boundary divided by two is called
1. midway value
2. true class limits
3. frequency value
4. class size
Correct Answer: 1
3
If 3 boys or 6 girls can accomplish a task in 120 days, how much time will 6 boys and 8 girls take to do it?
1.18 days
2.108 days
3.72 days
4.36 days
Correct Answer: 4
4
If x + y + z + w = 15, then at least k of the numbers x, y, z, w must be positive where k is
1. 0
2. 1
3. 2
4. 3
Correct Answer: 2
5
Rs.1,710 are divided into three parts such that 4 times the first, 6 times the second and 9 times the third are all equal. The ratio of three parts is
1. 4:6:9
2. 9:6:4
3. 2:3:5
4. 5:3:2
Correct Answer: 2
