Question

1o
* The diameter of the wheel of a tractor is 98 cm. How many
kilometres will it travel in 1000 rotations?
2) The length and breadth of a rectangular plot is 50 m and 40 m
respectively. It is to be fenced by 5 rounds of a metal wire which
costs 80 rupees per metre. Find the cost of fencing the plot.
3) Weight of 36 children in a class is given in kilograms. Draw up a
frequency table of this data.
42,48,50,49,48,43,44,45,44,48,49,42,49,42,42,49.48,43,50,49,41.
44,46,49,49,48,49,42,41,50,48,49,42,46,44,46​

Answer 1

Answer:

2)let length of the. etal wore be x

therefore,the perimeter of the plot is 2+(l+b)

2(50+40)

2(90)

2×90

180m

since, the length needed to fence the plot =180×5=900 metre

hope u all are understanding