Question

60 Women, working 4 hrs a day can do a piece of work in 5 days. Find the number of days in which 90 Women working 8 hrs a day can do twice the work. Assume that 2 Women of the first group do as much work in 2 hrs as 4 Women of the second group do in 1 hr.
A) 6(1/3) days
B) 6(2/3) days
C) 5(3/6) days
D) 3(1/3) days

Answer 1

Answer:

D

Step-by-step explanation:

WOMEN     WORKING HRS      DAYS       WORK

60                         4                        5              1

90                         8                         D             2  

WORK DOUBLED

WORKING HRS ALSO DOUBLED

SO IT IS TO BE REMOVED FROM CALCULATION

WOMEN  INCREASE  SO DAYS MUST DECREASE  

DAYS LESS THAN 5

ONLY OPTION IS  D    = 3 1/3

ANOTHER METHOD

60X4X 5  /(90X8XD)=1/2      

D=(2X60X4X5)/(90X8) =60X5/90 =6X5/9=2X5/3 =10/3 =3  1/3