12 painters were tasked with painting the interior. These painters made up 80% of the painting crew, so how many painters in all worked on this job?

15 painters

Step-by-step explanation:

Let the number of painters be A

To get the number of painters , it’ll be 80% of A = 12

That’s

80% /100% x A = 12

0.8 x A = 12

Divide both sides by 0.8

A = 12/0.8

A = 15

A total of 15 painters worked on the job

it is b)

hope this : )

step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.