A cylindrical stool has a base of diameter 70 cm and height 25 cm find the cost of painting 50 such stools if the cost per m sq is rs 55.

Step-by-step explanation:

Given

--- Diameter

--- Height

First, we calculate the surface area of 1 cylinder

This is calculated as:

The radius is calculated as:

The expression becomes:

Convert to

The surface area of 50 of such is:

The cost is then calculated as:

answer: no

step-by-step explanation:

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%