Question

2. 8 men can do a piece of work in 15 days. Let's find in how many days will 10
men finish the same work.
3. 12 men had provision of food for 20 days. Let's find, if there are 40 men, how
long will the provision last?
4. 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
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Answer 1

Answer:

12 days

24 days

20 ploughs

Answer 2

Answer:

2. 12days

3. 6days

4.20 ploughs

Step-by-step explanation:

2.  8men 15days

   per day 8 men finish 1/15th of the work

 per day a man finishes 1/120th of the work

10men

1/120*10 in one day=1/12 work in one day

∴10men take 12 days

3. 12 men 20 days

1man 240 days

40men finish provision in 6 days

4. 1 plough finishes 1/160field in one day

   1/160*8=1/20

∴20 ploughs are required to cultivate whole land in 8 days