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Mathematical Skills Practise Tests


1.
A ball is tossed in the air in such a way that the path of the ball is modeled by the equation y = -x2 + 6x, where y represents the height of the ball in feet and x is the time in seconds. At what time, x, is the ball at its highest point?
1. 6
2. 2
3. 3
4. 4
5. none of these



2.
What is the least number to be added to 8888 to make it a perfect square?
1. 137
2. 52
3. 112
4. 90
5. none of these



3.
In a certain party the ratio of boys and girls was 1 : 2. But when three boys and two girls left the party,the ratio becomes 1 : 3. Total number of boys and girls present in the party?
1. 15
2. 13
3. 9
4. 12
5. none of the above



4.
The ratio of Ishan's age to Joy's age is 4:5 and that of Ram's age to Kamal's age is 5:6. If total of their ages is 69 years. How old is Joy?
1. 24 years
2. 20 years
3. 30 years
4. 25 years
5. none of the above



5.
In manufacturing company, number of employees in unit A is 40, mean is USD $6400 and number of employees in unit B is 30 with mean of Rs. 5500 then combined arithmetic mean is
1. 9500
2. 8000
3. 7014.29
4. 6014.29
5. none of the above