7. If 3 women or 5 girls take 17 days to complete a piece of work, how

1.	7. If 3 women or 5 girls take 17 days to complete a piece of work, how long wil7 women and 11 girls working together take to complete the work?
Answer» Given 3 women or 5 girls cqn complete a piece of work in 17 days. 3women = 5 girls 1 women = 5/3 girls -------( 1 ) Now we have to convert both in either of women or girls. 7 women + 11 girls = 7 × (5/3)girls + 11 girls [ from ( 1 ) ] = ( 35 + 33 ) / 3 = 68/3 girls can complete the work in how many days . If 5 girls can finish the work in 17 days Then 68/3 girls can finish the same work in how many days ( 68 / 3 ) × 17 /5 = 1156 /15 days.

7. If 3 women or 5 girls take 17 days to complete a piece of work, how long wil7 women and 11 girls working together take to complete the work?

Answer»

Given 3 women or 5 girls cqn complete

a piece of work in 17 days.

3women = 5 girls

1 women = 5/3 girls -------( 1 )

Now we have to convert both in either

of women or girls.

7 women + 11 girls

= 7 × (5/3)girls + 11 girls [ from ( 1 ) ]

= ( 35 + 33 ) / 3 = 68/3 girls can complete the

work in how many days .

If 5 girls can finish the work in 17 days

Then 68/3 girls can finish the same work

in how many days

( 68 / 3 ) × 17 /5 = 1156 /15 days.