Question

the length and breadth of rectangle in the 378 length 7:6 find the breadth
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Answer 1

Answer:

Given length of rectangular courtyard

=378cm

breadth =525cm

Find the largest square tile :

largest square tile =H.C.F(378,525)

378=2×3×3×21

525=5×5×21

H.C.F=21

the length of largest square tile that can be paved exactly with other square tiles =21cm

Find the area of largest square tile :

Area = area of square =side×side

Area =21×21=441cm

2

Find the area of courtyard :

Area of rectangular courtyard

=length×breadth

378×525=198450cm

2

required minimum number of square tiles

=198450/441=450tiles.

therefore, minimum number square tiles

=450

we get

450tiles

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Answer 2

ATQ 7:6::378:x
7x= 378*6
x= 378*6/7
x=54*6=324