A can finish a task in 13 days and B in 29 days. Working together, how many days will they take to complete the task? (Round to 2 decimal places)
$Time = (13 * 29) / (13 + 29) = 8.98 days.$
An item with cost price Rs. 4100 is sold at a profit of 12%. What is the selling price in rupees?
$Selling Price = 4100 * (1 + 12/100) = Rs. 4592.$
Find the remainder when 541 is divided by 13.
541 = 13 * 41 + 8.
The average mark of 10 students in Group A is 24 and that of 10 students in Group B is 34. What is the combined average mark of both groups?
Combined average = (10*24 + 10*34) / 20 = 29.0.
A can finish a task in 12 days and B in 26 days. Working together, how many days will they take to complete the task? (Round to 2 decimal places)
$Time = (12 * 26) / (12 + 26) = 8.21 days.$