Question

10 boys cleared a piece of land for 21 days, how many days will it take 7boys to clear the same land if they work at the same rate?​

Answer 1

Step-by-step explanation:

10 boy cleared a piece of land =21 days

=21/10

2.1 days

7 boys cleared of land

=21 + [2.1 x 3]

21=6.3

27.3

=27 day

Answer 2

here,firstly we have to find how many days 1 boy need to clear the same piece of land

days needed by 10 boy to clean the piece of land = 21 day

days needed by 1 boy to clean the piece of land =21×10 =210 days

therefore, days needed by 7 boys to clean the piece of land = 210 ÷7 =30 days