It takes 3/7 of an hour to paint 3/5 of room, how long does it take to paint one room?

of an hour

Step-by-step explanation:

Given : It takes of an hour to paint of a room.

i.e. Time taken to paint of a room.= of an hour.

Using Unitary Method, we have

Time taken to paint one room.= of an hour.

⇒Time taken to paint one room= of an hour.

Hence, it will take of an hour to paint one room.

add an !

step-by-step explanation:

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.