Solution X contains 40% salt and 60% water by weights, Solution Y contains 25% salt and 75% water. If a mixture of X and Y contains 30% salt. What percent of the weight of this mixture is solution X?

A student's marks were wrongly entered as 83 instead of 63. Due to the error the average marks for the class g...

By mixing two qualities of pulses in the ration 2:3 and selling the mixture at the rate of Tk. 22 per kilogram...

Jamal covered a distance of 340 miles between ciry A and B taking a total of 5 hours. If part of the distance...

The average age of husband wife and their child 4 years ago was 27 years and that of wife and the child 5 year...

In a certain store, the profit is 320% of the cost, If the cost increases by 25% but the selling price remains...

The electricity bill of a certain establishment is partially fixed and partially varies as the number of units...