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Mathematical Skills Practise Tests


1.
If an amount of Rs. 4,51,000 is distributed equally amongst 88 persons.How munch amount would each person get?
1. Rs.5,123
2. Rs.5,213
3. Rs.5,251
4. Rs.5,215
5. none of these



2.
Suraj spends 75% of his income. His income increased by 20% and he increased his expenditure by 15%. His savings are then increased by?
1. 20%
2. 35%
3. 17 1/2%
4. 33 1/3%
5. none of the above



3.
How many liters of water must be evaporated from 20 liters of a 30% salt solution to produce a 50% salt solution?
1. 10 liters
2. 9 liters
3. 8 liters
4. 6 liters
5. none of these



4.
Which of the following function posses its inverse function
1. f : R ® R, f (x) = cos x
2.  f : R ® [-1 , 1], f (x) = cos x
3. f : [0, p ] ® R, f(x) = cos x
4. f : [p, 2p] ® [-1 , 1], f (x) = cos x
5. none of these



5.
The salaries of 8 employees who work for a small company are listed below. What is the median salary?
1. $31,500
2. $21,500
3. $13,500
4. $33,500
5. none of the above