A vessel contains 100 litre mixture of milk and water in the respective ratio 22 : 3. 40 litre of the mixture is taken out from the vessel and 4.8 litre of each pure milk and pure water is added to mixture. By what percent is the quantity of water in the final mixture less than the quantity of milk

The interest received on a sum of money when invested in scheme A is equal to the interest received on the same sum of money when invested for 2 years in scheme B. Scheme A offers simple interst (p.c.p.a) and Scheme B offers compound interest (compounded annually). Both the scheme offers the same rate of interest. If the numerical value of the number of years for which the sum is invested in Scheme A is same as the numerical value of the rate of interest offered by the same scheme, what is the rate of interest (p.c.p.a) offered by scheme A

Average score of a class of 50 students, in an exam was 34. Average score of the students who had passed is 52 and the average score of students who had failed is 16. How many failed the exam

X's age 3 years ago was three times the present age of Y. At present, Z's age is twice the age of Y. Also Z is 12 years younger than X. What is the present age of Z

A trader sells an item to a retailer at 20% discount, but charges 10% on the discounted price, for delivery and packaging. The retailer sells it for INR 2046/- more, thereby earning a profit of 25%. At what price had the trader marked the item

A bag contains 3 red balls, 5 yellow balls and 7 pink balls. If one ball is drawn at random from the bag, what is the probability that it is either pink or red