Question

4: 36 men can build a wall 140 m long in 21 days. How many men are needed to
construct a similar wall 50m long in 6 days?
5: If 30 women working 7 hours a day can finish a piece of work in 18 days, how
many women working 6 hours a day can finish itin 30 days?
5: A contractor employs 9 laboures for 25 days for Rs. 13,500 in all. How many
labours can be employed for 35 days for Rs. 21,000?
7: If 30 labours working 7 hours a day can finish a piece of work in 18 days, ha
many labourers working 6 hours a day can finish it in 30 days.
: 12 men working 8 hours a day complete a work in 10 days. How long we
1
hours a day take to complete the​

Answer 1

Step-by-step explanation:

(1) (36 ×21)/ 140 = (x × 6)/50

=> x = 45

(2) 30×7×18 = 6×30 × x => x = 21

(3) 9×25/13500= (35 × x) /21000

=> x = 10

(4) 30×7×18 = 6 × 30 × x => x = 21

(5) incomplete question !