The average mark of 10 students in Group A is 36 and that of 10 students in Group B is 46. What is the combined average mark of both groups?
Combined average = (10*36 + 10*46) / 20 = 41.0.
A can finish a task in 14 days and B in 30 days. Working together, how many days will they take to complete the task? (Round to 2 decimal places)
$Time = (14 * 30) / (14 + 30) = 9.55 days.$
An item with cost price Rs. 5900 is sold at a profit of 18%. What is the selling price in rupees?
$Selling Price = 5900 * (1 + 18/100) = Rs. 6962.$
Find the remainder when 793 is divided by 13.
793 = 13 * 61 + 0.
The average mark of 10 students in Group A is 38 and that of 10 students in Group B is 48. What is the combined average mark of both groups?
Combined average = (10*38 + 10*48) / 20 = 43.0.