Arunbabu used $16$ ploughs to cultivate his whole land in $10$ days. Let's find, if he wanted to cultivate the same land in 8 days, how many ploughs he would have needed.

Open in App

Solution

''16 ploughs to cultivate his whole land in 10 days"
That is for one day he needs $= 10 \times 16 = 160$ ploughs

So for 8 days, he needs $= \frac{160}{8} = 20$ ploughs.
Alternate way
The given question is a case of inverse propertion.
$\begin{matrix} Ploughs & 16 & x Days & 10 & 8 \end{matrix}$
If numbers of ploughs will increase then number of days will decrease.
$16 \times 10 = x \times 8$
$\Rightarrow x = \frac{160}{8} = 20$ ploughs

Suggest Corrections

Similar questions

Q. How many men will be required to plough

100

acres of land is

10

days if

10

men require

8

days to plough

20

acres of land?

Solve the following.

If 8 oxen can plough 45 acres of land in 15 days, then how many acres of land can 12 oxen plough in 9 days?

A

can cultivate

\frac{2}{5}

of a land in 6 days and

B

can cultivate

\frac{1}{3}

of the same land in 10 days. Working together,

A

and

B

can cultivate

\frac{4}{5}

of the land in:

Q. If a farmer can plough 2 fields in 6 days, then how many fields can he plough in 15 days?

Sunil and Rajesh together plough a field in 5 days. Rajesh alone takes 6 days to plough the same field. In how many days can Sunil alone plough the field?

Join BYJU'S Learning Program

Arunbabu used 16 ploughs to cultivate his whole land in 10 days. Let's find, if he wanted to cultivate the same land in 8 days, how many ploughs he would have needed.

Arunbabu used $16$ ploughs to cultivate his whole land in $10$ days. Let's find, if he wanted to cultivate the same land in 8 days, how many ploughs he would have needed.