Sasi Math (Revised for 1024)

Scroll:Measurements >> Circle word problems >> ps (4482)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.

The diameter of a circular park is 112 m. Find the cost of fencing it at 9 per meter.

Answer:_______________

The diameter of a circular park is 35 m. Find the cost of fencing it at 6 per meter.

Answer:_______________

The diameter of a circular park is 84 m. Find the cost of fencing it at 8 per meter.

Answer:_______________

The diameter of a circular park is 126 m. Find the cost of fencing it at 7 per meter.

Answer:_______________

The diameter of a circular park is 70 m. Find the cost of fencing it at 6 per meter.

Answer:_______________

The diameter of a circular park is 77 m. Find the cost of fencing it at 7 per meter.

Answer:_______________

The diameter of a circular park is 154 m. Find the cost of fencing it at 4 per meter.

Answer:_______________

The diameter of a circular park is 161 m. Find the cost of fencing it at 5 per meter.

Answer:_______________

The diameter of a circular park is 56 m. Find the cost of fencing it at 5 per meter.

Answer:_______________

10)

The diameter of a circular park is 91 m. Find the cost of fencing it at 4 per meter.

Answer:_______________

The diameter of a circular park is 112 m. Find the cost of fencing it at 9 per meter.

Answer: 3168

SOLUTION 1 :

Given,

Diameter of the wheel = 112m

Lenth to be fenced = Circumference of the circular park.

circumference of wheel = πd

= $\frac{22}{7}$ x ~~112~~¹⁶

= 22 x 16

= 352 m.

Cost of fencing for one meter = 9

Cost of fencing for 352 meters = 352 x 9 = 3168

Hence, the cost of fencing the circular park is 3168.

The diameter of a circular park is 35 m. Find the cost of fencing it at 6 per meter.

Answer: 660

SOLUTION 1 :

Given,

Diameter of the wheel = 35m

Lenth to be fenced = Circumference of the circular park.

circumference of wheel = πd

= $\frac{22}{7}$ x 35⁵

= 22 x 5

= 110 m.

Cost of fencing for one meter = 6

Cost of fencing for 110 meters = 110 x 6 = 660

Hence, the cost of fencing the circular park is 660.

The diameter of a circular park is 84 m. Find the cost of fencing it at 8 per meter.

Answer: 2112

SOLUTION 1 :

Given,

Diameter of the wheel = 84m

Lenth to be fenced = Circumference of the circular park.

circumference of wheel = πd

= $\frac{22}{7}$ x 84¹²

= 22 x 12

= 264 m.

Cost of fencing for one meter = 8

Cost of fencing for 264 meters = 264 x 8 = 2112

Hence, the cost of fencing the circular park is 2112.

The diameter of a circular park is 126 m. Find the cost of fencing it at 7 per meter.

Answer: 2772

SOLUTION 1 :

Given,

Diameter of the wheel = 126m

Lenth to be fenced = Circumference of the circular park.

circumference of wheel = πd

= $\frac{22}{7}$ x ~~126~~¹⁸

= 22 x 18

= 396 m.

Cost of fencing for one meter = 7

Cost of fencing for 396 meters = 396 x 7 = 2772

Hence, the cost of fencing the circular park is 2772.

The diameter of a circular park is 70 m. Find the cost of fencing it at 6 per meter.

Answer: 1320

SOLUTION 1 :

Given,

Diameter of the wheel = 70m

Lenth to be fenced = Circumference of the circular park.

circumference of wheel = πd

= $\frac{22}{7}$ x 70¹⁰

= 22 x 10

= 220 m.

Cost of fencing for one meter = 6

Cost of fencing for 220 meters = 220 x 6 = 1320

Hence, the cost of fencing the circular park is 1320.

The diameter of a circular park is 77 m. Find the cost of fencing it at 7 per meter.

Answer: 1694

SOLUTION 1 :

Given,

Diameter of the wheel = 77m

Lenth to be fenced = Circumference of the circular park.

circumference of wheel = πd

= $\frac{22}{7}$ x 77¹¹

= 22 x 11

= 242 m.

Cost of fencing for one meter = 7

Cost of fencing for 242 meters = 242 x 7 = 1694

Hence, the cost of fencing the circular park is 1694.

The diameter of a circular park is 154 m. Find the cost of fencing it at 4 per meter.

Answer: 1936

SOLUTION 1 :

Given,

Diameter of the wheel = 154m

Lenth to be fenced = Circumference of the circular park.

circumference of wheel = πd

= $\frac{22}{7}$ x ~~154~~²²

= 22 x 22

= 484 m.

Cost of fencing for one meter = 4

Cost of fencing for 484 meters = 484 x 4 = 1936

Hence, the cost of fencing the circular park is 1936.

The diameter of a circular park is 161 m. Find the cost of fencing it at 5 per meter.

Answer: 2530

SOLUTION 1 :

Given,

Diameter of the wheel = 161m

Lenth to be fenced = Circumference of the circular park.

circumference of wheel = πd

= $\frac{22}{7}$ x ~~161~~²³

= 22 x 23

= 506 m.

Cost of fencing for one meter = 5

Cost of fencing for 506 meters = 506 x 5 = 2530

Hence, the cost of fencing the circular park is 2530.

The diameter of a circular park is 56 m. Find the cost of fencing it at 5 per meter.

Answer: 880

SOLUTION 1 :

Given,

Diameter of the wheel = 56m

Lenth to be fenced = Circumference of the circular park.

circumference of wheel = πd

= $\frac{22}{7}$ x 56⁸

= 22 x 8

= 176 m.

Cost of fencing for one meter = 5

Cost of fencing for 176 meters = 176 x 5 = 880

Hence, the cost of fencing the circular park is 880.

10)

The diameter of a circular park is 91 m. Find the cost of fencing it at 4 per meter.

Answer: 1144

SOLUTION 1 :

Given,

Diameter of the wheel = 91m

Lenth to be fenced = Circumference of the circular park.

circumference of wheel = πd

= $\frac{22}{7}$ x 91¹³

= 22 x 13

= 286 m.

Cost of fencing for one meter = 4

Cost of fencing for 286 meters = 286 x 4 = 1144

Hence, the cost of fencing the circular park is 1144.