Q3 of 54 Page 165

If 35 men can reap a field in 8 days, in how many days can 20 men reap the same field?

More the number of men, lesser the days required. So, it is an inverse proportion.


Let the required no. of days be x.


⇒ 35 × 8 = 20 × x


⇒ x = = 14 days


More from this chapter

All 54 →
1

Observe the tables given below and in each case find whether x and y are inversely proportional:

(i)


















X



6



10



14



16



Y



9



15



21



24



(ii)




















X



5



9



15



3



45



Y



18



10



6



30



2



(iii)


















X



9



3



6



36



Y



4



12



9



1


 2

If x and y are inversely proportional, find the values of x1, x2, y1 and y2 in the table given below:



















X



8



x1



16



x2



80



Y



y1



4



5



2



y2


 4

12 men can dig a pond in 8 days. How many men can dig it in 6 days?

 5

6 cows can graze a field in 28 days. How long would 14 cows take to graze the same field?