The members of housing colony of fortune avenue took up the task of planting saplings in the parks located in their venture it was informed that there are two possibilities Case 1: 4 men and 6 boys can finish a piece of work in 5 days Case 2 : 3 men and 4 boys can finish it in 7 days 41. Assuming that a man can complete the work alone in x days, his work in four days would be: 1 b) X a) XIX d) 4x 42. If a man alone takes x days to complete the work while a boy takes y days to complete the work. The equation representing case 1 is given by: : 5 b) 6 4 = = X 5 y 4 = 5 5 4 d) X у 43. As per the case study, In how many days can a man alone complete the work. a) 35 days b) 70 days c) 50 days d) 100 days

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

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step-by-step explanation:

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."