Question

the cost of 10 pens is Rs.25. then find the cost of 20 pens?

12. A farmer has enough food for 144 ducks for 28 days. If he sells

32 ducks, how long will the food last?
please answer me​

Answer 1

Answer:

11.50. 12.570Days

Step-by-step explanation:

For 12 144 ducks-----28days

if 33 ducks are sold remaning=144-33=111

for 111 ducks how many days the food exists

IF DUCKS DECREASE THE DAYS INCREASE SO IT IS INVERSELY PROPORTIONAL

D1D2=V1V2

144*111=28*X

570.85 Days