A study shows that a contractor employs 6 times as many men as he does women, with a total work force of 490. How many men does the contractor employ?
A)70
B)157
C)245
D)420
E)Not enough information is given.
and
One window washer working alone can wash the windows of a certain building in 15 hours. His partner can do the job in only 10 hours. To the nearest half-hour, how many hours would they need to do the job working together?
A)6
B)6 1/2
C)7
D)7 1/2
E)8
Thanks!!
A)70
B)157
C)245
D)420
E)Not enough information is given.
and
One window washer working alone can wash the windows of a certain building in 15 hours. His partner can do the job in only 10 hours. To the nearest half-hour, how many hours would they need to do the job working together?
A)6
B)6 1/2
C)7
D)7 1/2
E)8
Thanks!!