MATH TRICK: Compound Proportion.(Arrow method) Inverse Variation; Compound Proportions; ARROW METHOD

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This video solves following 4 mathematics questions:

QUESTION 1: In a factory, if 35 workers can make 49 products in 3 days. Then, 20 workers, working for 6 days, will make how many products?

QUESTION 2: 64 men working 12 hours a day, dig a pond 50 m long, 2 m wide and 2 m deep in 5 days. In how many days, working 8 hours a day, will 80 men dig a pond 75 m long, 4 m wide and 3 m deep?

QUESTION 3: If 1 man or 2 women or 3 children can harvest a field in 55 days. Then, 1 man and 1 woman and 1 child together will harvest the same field in how many days?

QUESTION 4: 2 men and 7 boys can clean an office in 14 days. 3 men and 8 boys can do the same in 11 days. In how many days, will 8 men and 6 boys will clean the office which is 3 times bigger?

Link for Hindi version of this video is:    • Compound Proportion.(Arrow method), | Inve...  
इस वीडियो के हिंदी संस्करण के लिए लिंक है:    • Compound Proportion.(Arrow method), | Inve...  

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