Question

One fifth of a multistorey building is painting green, one third yellow and one fourth blue.if the remaining portion is 1.3 m long the length of the building is?​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

The total length of the building = 6 meter

Step-by-step explanation:

Let the total length of the building be x

$\text{Now, The part of the building painted green = }\frac{x}{5}$

$\text{Now, The part of the building painted yellow = }\frac{x}{3}$

$\text{Now, The part of the building painted blue = }\frac{x}{4}$

Also, the remaining part = 1.3 meter

$\implies \text{Total length = }\frac{x}{5}+\frac{x}{3}+\frac{x}{4}+1.3$

$\implies x=\frac{12x + 20x + 15x + 78}{60}$

$\implies x\times 60=47x + 78$

⇒ 60x = 47x + 78

⇒ 13x = 78

⇒ x = 6

Therefore, The total length of the building = 6 meter