Three vessels contain alcoholic solutions with the concentrations of alcohol as 0.25, 0.5 and 0.75 respectively. 4 litres from the first, 6 litres from the second and 8 litres from the third are mixed. What is the ratio of alcohol and water in the resultant mixture? 

The average of all prime numbers 21 to 50 is (round off to one decimal number) 

Ajay bought Rs.11,000 from a bank to buy a car at 12% simple Interest. If he paid Rs 6,600 as interest while clearing the loan, find the time for which the loan was given.

Find the difference of CI and SI on a sum of Rs. 30240 invested for 3 years at rate of interest per annum.

A man rows to a place 35 km in distance and back in 10 hours 30 minutes. He found that he can row 5 km with the stream in the same time as he can row 4 km against the stream. Find the rate of flow of the stream? 

if 5432*7 is divisible by 9, then the digit in place of * is :

A rod of length 85 m is divided into two parts if the first part of the rod is 2/3 of the second part then the larger part (in metres) is.

The three days before yesterday was Saturday then what will be the day five days after the day after tomorrow.