A vessel contains some litres of pure milk. If 25 litre of water is added to the vessel, then ratio between milk and water becomes 12:5, 17 litres of mixture is drawn from the vessel and 10 litre of water is added to the mixture. Find the new ratio between milk and water.

A person lent certain sum of money at 5% per annum simple interest and in 15 years the interest amounted to Rs 250 less than the sum lent. What was the sum lent (in Rs)?

Direction: Percentage of different types of employees in a company in two consecutive years.

From 1997 to 1998 in the case of which of the following types of employees the change was maximum ? 

40% of the employees in a factory are workers. All the remaining employees are executives. The annual income of each worker is Rs. 39000. The annual income of each executive is Rs. 42000. What is the average annual income of all the employees in the factory together?

If (a + b) : (b + c) : (c + a)  = 6 : 7 : 8 and a + b +c =14, then the value of c=

The value of $${4- \sqrt{0.04} \over 4+\sqrt{0.4} } $$  is closed to

Given that, 10 % of A's income = 15 % of B's income = 20 % of C's income. If sum of their incomes is ₹ 7800, then B's income is : 

A number consists of two digits and the digit in the ten's place exceeds that in the unit's place by 5. If 5 times the sum of the digits be subtracted from the number, the digits of the number are reversed. Then the sum of the digits of the number is: