20 men can make a road for 50 km in 10 days in hown many days can 15 men make a road for 7km

1.87 days

Step-by-step explanation:

If it takes 20 men can make a road for 50 km in 10 days, by the unitary method,  1 man can make 50 km/20 in 10 days.

So 1 man can make 2.5 km in 10 days.

We then calculate for 15 men by multiplying the expression by 15

So, for 15 men, 15 × 1 man can make 2.5 km × 15 in 10 days/

So, 15 men can make 37.5 km in 10 days.

Since 15 men can make 37.5 km in 10 days, 15 men will make 1 km in 10/37.5 days.

So multiplying by 7,

15 men will make 7 × 1 km in 7 × 10/37.5 days

Thus 15 men will make 7 km in 1.87 days

step-by-step explanation: 2

both the histogram and the stem and leaf plot will visually show how many shoppers were of various ages within each range of data.   the histogram does not give us the specific ages of these shoppers unlike the stem and leaf plot.a histogram does not give us a true range of the data because we do not know exactly how old the shoppers were. a stem and leaf plot will give exact ages, so we can determine the exact range along with all measures of center and the others measures of center.   with the histogram, we cannot find any of these.

step-by-step explanation: