Question

12 व्यक्ति किसी काम को 10 दिनों में कर
सकते है । उस काम को 8 दिनों में करने के
लिए कितने व्यक्तियों की आवश्यकता होगी?​

Answer 1

Answer:

12×10÷8=15

..man ..

...

.....

........

.......

...

Answer 2

Answer:

15 persons

Step-by-step explanation:Let 1 person can do the work in x days

∴ 1 person's 1 day work = 1÷x

( for understanding : AGAR 1 AADMI US KAAM KO 10 DIN MEIN KARTA HAI , TO USKE EK DIN KA KAAM 1/10th HI HOGA,,,ASSUMING THAT KI WO HAR DIN EQUAL KAAM KARTA HAI)

12 person's 1 day work=12/x

12 person's 10 day work=120/x

IN 2ND CASE

Let y persons can complete the work in 8 days

with same concept,

1 person's 1 day work =1/x

1 person's 8 day work=8/x

⇒y person's 8 day work = 8y/x

since the work is complete in both the cases

120/x = 8y/x

⇒120=8y

⇒y=15

therefore 15 people can do the work in 8 days

HOPE THAT HELPS!!!!!