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MISSION PATWARI 2020 SUBSCRIBE OUR CHANNEL MENSURATION PDF

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Page 2: MISSION PATWARI 2020 SUBSCRIBE OUR CHANNEL MENSURATION … · MENSURATION PDF . 1.A room 24cm long and 32cm broad is to be paved with equal no of tiles. Find the no of largest tiles

1.A room 24cm long and 32cm broad is to be

paved with equal no of tiles. Find the no of largest

tiles requires so that the tiles exactly fit.

A.15

B.12

C.17

D.19

E.None of these

2.A circular garden has a path of uniform width

around it. The difference between outer and inner

circumference of the circular path is 210cm.Find

its width.

A.33.44cm

B.30.34cm

C.40.24cm

D.28.64cm

E.None of these

3.The length of a rectangular plot is 3 folds its

width. Half the area of the plot is covered by a

playground whose area is 363 square meters.

What is the length of the plot?

A.18.50m

B.13.61m

C.17.21m

D.15.51m

E.None of these

4.A rectangular field has its length and breadth in

the ratio 6:5 respectively. A man riding bicycle

complete one lap of this field along its perimeter

at the speed of 12kmph in 1.5m. What is the area

of the field?

Page 3: MISSION PATWARI 2020 SUBSCRIBE OUR CHANNEL MENSURATION … · MENSURATION PDF . 1.A room 24cm long and 32cm broad is to be paved with equal no of tiles. Find the no of largest tiles

A.5345

B.5487

C.5468

D.5460

E.None of these

5.One of the angles of a parallelogram is

65degree. What will be the sum of twice the

largest angle and thrice the smallest angle of the

parallelogram?

A.460degree

B.375degree

C.235degree

D.425degree

E.None of these

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6.The area of the square is three-fifth the area of

a rectangle. The length of the rectangle is 25cm

and breadth 10cm less than its length. What is the

area of the square?

A.20cm

B.12cm

C.15cm

D.17cm

E.None of these

7.What will be the cost of painting a hall whose

area is 256sq m, if the rate of painting per sq m is

Page 4: MISSION PATWARI 2020 SUBSCRIBE OUR CHANNEL MENSURATION … · MENSURATION PDF . 1.A room 24cm long and 32cm broad is to be paved with equal no of tiles. Find the no of largest tiles

Rs.22.

A.Rs.1256

B.Rs.1350

C.Rs.2225

D.Can’t be determined

E.None of these

8.The width of a rectangle is 10 meter and its area

are 120 square meters. If length of the rectangle

is increased by 6. What is the new perimeter of

the rectangle?

A.65

B.43

C.56

D.32

E.None of these

9.If the sides of a triangle measure 62cm, 70cm

and 18cm, what is the measure of its in radius?

A.7cm

B.6cm

C.4cm

D.9cm

E.None of these

10.Four horses are tethered at 4 corners of a

square field of side 60 metres so that they just

cannot reach one another. The area left ungrazed

by the horses is:

A.841m

B.771m

C.612m

D.523m

E.None of these

Page 5: MISSION PATWARI 2020 SUBSCRIBE OUR CHANNEL MENSURATION … · MENSURATION PDF . 1.A room 24cm long and 32cm broad is to be paved with equal no of tiles. Find the no of largest tiles

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11.The length and the breadth of a rectangular

door are increased by 1 m each and due to this

the area of the door increased by 21 sq. m. But if

the length is increased by 1 m and breadth

decreased by 1 m, area is decreased by 5 sq. m.

Find the perimeter of the door.

A) 25 m

B) 20 m

C) 40 m

D) 60 m

E) 24 m

12.The perimeter of a rectangular plot is 340 m.

Find the cost of gardening 1 m broad boundary

around it at the rate of Rs 10 per sq. m.

A) Rs 3450

B) Rs 3400

C) Rs 3480

D) Rs 3440

E) Rs 3880

13.The sides of a triangle are in the ratio 3: 4: 5

whose area is 216 sq. cm. What will be the

perimeter of this triangle?

A) 58 cm

B) 64 cm

C) 28 cm

D) 36 cm

E) 72 cm

Page 6: MISSION PATWARI 2020 SUBSCRIBE OUR CHANNEL MENSURATION … · MENSURATION PDF . 1.A room 24cm long and 32cm broad is to be paved with equal no of tiles. Find the no of largest tiles

14.If the base of a triangle is increased by 50%

and its height is decreased by 50%, then what

will be the effect on its area?

A) 50% decrease

B) 75% increase

C) No effect

D) 25% decrease

E) 25% increase

15.A rectangle whose sides are in the ratio 6: 5 is

formed by bending a circular wire of radius 42 cm.

Find the largest side of the rectangle.

A) 60 cm

B) 72 cm

C) 66 cm

D) 78 cm

E) 84 cm

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Page 7: MISSION PATWARI 2020 SUBSCRIBE OUR CHANNEL MENSURATION … · MENSURATION PDF . 1.A room 24cm long and 32cm broad is to be paved with equal no of tiles. Find the no of largest tiles

Answer – B.12

Explanation:

HCF of 24,32 = 8

No of tiles = L *B/(HCF)2

= 24*32/8*8 = 12

Answer – A.33.44cm

Explanation:

2*3.14*R – 2*3.14*r = 210

R-r = 210/2*3.14 = 33.44cm

Answer – D.15.51m

Explanation:

X * 3X = 320*2

3x 2 = 363*2

x 2 = 363*2/3 = 121*2

x = 11*1.41 = 15.51

Answer – C.5468

Explanation:

Speed = 12*5/18 = 3.3 m/s

Perimeter = Distance

2(6x+5x) = 90*3.3

22x= 297

X=13.5

Area = 6*13.5 *5*13.5 = 5467.5 = 5468sq.m

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Page 8: MISSION PATWARI 2020 SUBSCRIBE OUR CHANNEL MENSURATION … · MENSURATION PDF . 1.A room 24cm long and 32cm broad is to be paved with equal no of tiles. Find the no of largest tiles

Answer – D.425degree

Explanation:

180-65 = 115

2*115+ 3*65 = 230+195 = 425

Answer – C.15cm

Explantion:

Area of rectangle = 25*15 = 375sq.cm

Area of square = 3*375/5 = 225sq.cm = a*a

Side of the square = a = 15cm

Answer – Can’t be determined

Explanation:

Hall shape and its parameter was not given

Answer – C.56

Explanation:

Length = 120/10 = 12

(12+6) = 18

Perimeter = 2(10+18) = 56

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Page 9: MISSION PATWARI 2020 SUBSCRIBE OUR CHANNEL MENSURATION … · MENSURATION PDF . 1.A room 24cm long and 32cm broad is to be paved with equal no of tiles. Find the no of largest tiles

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Answer – A.7cm

Explanation:

Radius = product of perpendicular side/ perimeter of

traingle

R = 62*18/62+70+18 = 1116/150 = 7.44 = 7cm

Answer – B.771m

Explanation:

Length of the rope = 60/2 = 30m

Total area covered by 4 horse = 22*30*30/7

Ungrazed area = Area of Square field – area covered by

4 horse

= 3600 – 2829 = 771m

C) 40 m

Explanation:

Let original length = l, breadth = b, so area = lb

When l and b increased by 1:

(l+1)(b+1) = lb + 21

Solve, l + b = 20

When l increased by 1, b decreased by 1:

(l+1)(b-1) = lb – 5

Solve, l – b = 6

Now solve both equations, l = 13, b = 7

Perimeter = 2(13+7)

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Page 10: MISSION PATWARI 2020 SUBSCRIBE OUR CHANNEL MENSURATION … · MENSURATION PDF . 1.A room 24cm long and 32cm broad is to be paved with equal no of tiles. Find the no of largest tiles

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D) Rs 3440

Explanation:

Given 2(l+b) = 340

1 m broad boundary means increase in l and b by 2 m

So area of the boundary will be [(l+2)(b+2) – lb] =

2(l+b) + 4 = 340 + 4 = 344

So cost of gardening = 344*10

E) 72 cm

Explanation:

Sides 3x, 4x, 5x

So semi-perimeter, s = (3x+4x+5x)/2 = 6x

Area = √s(s-a)(s-b)(s-c)

= √6x*3x*2x*x = 6x2 cm2

So 6x2 = 216, this gives x = 6

Perimeter = 12x = 12*6

D) 25% decrease

Explanation:

Area of triangle = (1/2) * base * height

So effect on area = +50 + (-50) + (50) (-50)/100 = -

25%

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Page 11: MISSION PATWARI 2020 SUBSCRIBE OUR CHANNEL MENSURATION … · MENSURATION PDF . 1.A room 24cm long and 32cm broad is to be paved with equal no of tiles. Find the no of largest tiles

B) 72 cm

Explanation:

Length of wire = 2ᴨr = 264 which should be equal to

the perimeter of rectangle in which it is bent.

So 2(6x + 5x) = 264

Solve, x= 12

Largest side = 6x = 6*12

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