Question

9 painters can paint 180 m in 3 days how many painters can paint 200m in 5 days

Answer 1

Answer: 8

Step-by-step explanation:

Answe

x

200

5

12

:

x

180

:

200

=

9

:

10

3

:

5

Number of painters

α

length of the wall

12

:

x

=

9

:

10

......... (1) and

Number of painters

α

1

n

u

m

b

e

r

o

f

d

a

y

s

12

:

x

=

inverse ratio of

3

:

5

12

:

x

=

5

:

3

........(2)

from (1) and (2)

12

:

x

=

compound ratio of

9

:

10

and

5

:

3

12

:

x

=

(

9

:

10

)

×

(

5

:

3

)

12

:

x

=

9

×

5

:

10