Previous year questions give guidance to us and provide a base for the preparation of any competitive exam. It is always good to have an experience of how the level of exam varies from year to year. For every subject like in Quantitative Aptitude, we come to know the pattern of questions must be followed to prepare the examination

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**Q.1:**In a mixture of 40 liters, the ratio of milk and water is 4 : 1. If some quantity of mixture taken out and then 4 litre of milk and 4 litre of water is added to the mixture then the ratio of milk and water become 8 : 3. Find the quantity of mixture which was taken out initially?

**(a)**10 litre

**(b)**15 litre

**(c)**12 litre

**(d)**18 litre

**(e)**None of these

**Q.2:**If the present age of A is twice the present age of B. 18 years ago age of C is half the age of B six years hence. If the average of the present age of A, B and C is 42 years. Find the age of A 9 years hence?

**(a)**69 years

**(b)**70 years

**(c)**73 years

**(d)**77 years

**(e)**None of these

**Q.3:**A boat takes 6 min more to cover 21 km downstream when the river flowing at the speed of km/hr then the time taken to cover the same distance downstream when the river flowing at the rate of km/hr. find the value of if the speed of boat in still water is 12 km/hr ?

**(a)**1.5

**(b)**2

**(c)**2.5

**(d)**1

**(e)**3

**Q.4:**A certain sum was put on simple interest at 20% per annum for 2 years. Then the amount received after 2 years put on compound interest 12% per annum for 2 more years. If the amount received at the end of 4 years is 43904 Rs. Then find the amount invested at starting ?

**(a)**20,000 Rs.

**(b)**25,000 Rs.

**(c)**30,000 Rs.

**(d)**40,000 Rs.

**(e)**None of these

**Q.5:**A man bought a mobile and a laptop for Rs. 78000. He sold the mobile at a gain of 25% and the laptop at a loss of 15%, thereby gaining 5% on the whole. Find the cost price of mobile.

**(a)**Rs. 39000

**(b)**Rs. 34000

**(c)**Rs. 30000

**(d)**Rs. 38000

**(e)**Rs. 32000

**Answers:**

**Ans 1:**

**(b) 15 litre**

**Ans 2:**

**(a) 69 years**

**Ans 3:**

**(b) 2**

**Ans 4:**

**(b) 25,000 Rs**.

**Ans 5:**

**(a) Rs. 39000**

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MAHENDRA GURU