Question

plz answer fast plz plz ​

Answer 1

Answer:

l = 15 and b = 12

Step-by-step explanation:

Cost of flooring = Rs 25

Total cost = Rs 4500

Area = 4500/25

= 180

Let the length and breadth be in the ratio 5x and 4x respectively.

Area= l*b

= 5x * 4x = 180

= 20 x square = 180

= x square = 180/20

= x square = 9

= x = 3

length = 5x = 5*3 = 15 units

breadth = 4x = 4*3 = 12 units

Answer 2

Answer:

TOTAL COST OF FLOORING = 4500

AND COST OF FLOORING OF 1 M² = 25

SO, TOTAL AREA = 4500/25 = 180 ......(1)

=》GIVEN LENGTH AND BREADTH RATIO IS 5:4

SO, WE CAN ASSUME THAT -

=》 LENGTH = 5x AND BREADTH = 4x

THEN AREA = (5x)(4x) = 20 x² ......(2)

BY EQUATION (1) AND (2) .....

=》 20 X² = 180

=》

${x}^{2} = 9\\ \\ x = 3$

SO ,

$length = 15$

$breadth = 12m$

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