Question

A building hai 15 floors. each floors hai 9 flats. each flat hai 4 room. how many room are there in the building?

Answer 1

Step-by-step explanation:

15×9=135flats 135×4=540rooms totaltly 540rooms

Answer 2

Question ⤵

A building hai 15 floors. each floors hai 9 flats. each flat hai 4 room. how many room are there in the building?

Given⤵

$\rightarrow$That the building has 15 floors. Each floor has 9 flats. Each flat have 4 room

To Find ⤵

$\rightarrow$Number of rooms in the building

Solution ⤵

$\rightarrow$From given question,

$\Rightarrow$ Each flat have 4 room

1 flat = 4 rooms

Each floor has 9 flats. Let us calculate the number of rooms in 9 flats

Number of rooms in 9 flats = 9 x number of rooms in 1 flat

Number of rooms in 9 flats = 9 x 4 = 36

$\because$ there are 36 rooms in 9 flats

$\because$ we can say there are 36 rooms in each floor. (since each floor has 9 flats)

The building has 15 floors. So number of rooms in 15 floors are:

Number of rooms in 15 floors = 36 x 15 = 540

$\because$ there are 540 rooms in building