A field is 250 m long and 60 m broad. A circular well of radius 6.5 m and depth 15 m is dug in the field and the soil taken out of it is spread evenly over the field. Find the height of the field raised by it

I’d go with b hope it

Can you tell us the question

What is the diagram u didn't post that

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.