## the perimeter of a semi circle is 144 cm then the radius is---------?

the perimeter of a semi circle is 144 cm then the radius is---------?

28 cm | |

25 cm | |

35 cm | |

30 cm |

پاک اسٹڈی لائبریری اپنی خدمات کو بہتر کرنے کے لئے نئے سوفٹ وئیر انسٹال کررہی ہے ۔ اس لئے آئندہ کچھ دن آپ کو کچھ صفحات تک رسائی میں مشکلات کا سامنا ہوسکتا ہے ۔ جس کے لئے ہم معذرت خواہ ہیں۔

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the perimeter of a semi circle is 144 cm then the radius is---------?

28 cm | |

25 cm | |

35 cm | |

30 cm |

the perimeter of a rhombus is 68 cm and one of its diagonals is 16 cm. find its area?

220 cm2 | |

260 cm2 | |

280 cm2 | |

240 cm2 |

the perimeter of a rectangle is 60m. if it’s length is twice its breadth then its area is----------?

180m2 | |

220m2 | |

200m2 | |

160m2 |

the perimeter of a rectangle and square are 160m each. the area of the rectangle is less than that it’s square by 100cm meters.

50m | |

40m | |

60m | |

30m |

the perimeter of a floor of a room is 18m.what is the area of four walls of the room if it; a height is 3m?

54 sq.m | |

21 sq.m | |

108 sq.m | |

42 sq.m |

the percentage profit earned by selling an article for rs. 1920 is equal to the percentage loss incurred by selling the same article for rs. 1280.

rs. 2400 | |

rs. 2200 | |

none of these | |

rs. 2000 |

the parameter of a square is equal to the perimeter of a rectangle of length 16 cm and breadth 14 cm.

47.14 cm | |

23.57 cm | |

84.92 cm | |

94.94 cm |

the parameter of a square is double the perimeter of a rectanglthe area of the rectangle is 480 sq cm. find the area of the square.

cannot be determined | |

72 sq cm | |

200 sq cm | |

162 sq cm |

the owner of a furniture shop charges his customer 24% more than the cost pricif a customer paid rs.

rs. 5275 | |

rs. 6275 | |

rs. 5725 | |

rs. 6725 |

the number which exceeds 16% of it by 42 is--------?

58 | |

50 | |

52 | |

60 |

the number of solid spheres each of diameter 6 cm, that could be moulded to form a solid metal cylinder of height 45 cm and diameter 4 cm is?

5 | |

4 | |

3 | |

6 |

the number of sequences in which 7 players can throw a ball, so that the youngest player may not be the last is -.

5300 | |

4320 | |

4000 | |

2160 |

the number of seats available for biology and computer science in a school is in the ratio 5:8. they are to be increased by 30% and 25% .

6:10 | |

3:04 | |

35:33:00 | |

13:20 |

the number of rounds that a wheel of diameter 7/11 m will make in going 4 km is:---------?

1700 | |

1500 | |

2000 | |

1000 |

the number of permutations of the letters of the word ‘mesmerise’ is-----------?

9!/(2!)2 3! | |

5!/(2!)2 3! | |

9!/(2!)2 (3!)2 | |

9!/(2!)3 3! |

the number of new words that can be formed by rearranging the letters of the word ‘alive’ is----------?

23 | |

120 | |

119 | |

24 |

the number of arrangements that can be made with the letters of the word meadows so that the vowels occupy the even places?

720 | |

36 | |

120 | |

144 |

the number obtained by interchanging the two digits of a two-digit number is less than the original number by 45.

49 | |

either (a) or (b) | |

83 | |

94 |

the monthly incomes of a and b are in the ratio 5 : 2. b’s monthly income is 12% more than c’s monthly incomif c’s monthly income is rs.

rs. 180000 | |

rs. 201600 | |

rs. 420000 | |

rs. 504000 |

the mean of 50 observations was 36. it was found later that an observation 48 was wrongly taken as 23. the corrected new mean is-----------?

35.2 | |

39.1 | |

36.5 | |

36.1 |

the mean marks of 30 students in a class is 58.5. later on it was found that 75 was wrongly recorded as 57. find the correct them.

58.9 | |

57.5 | |

59.1 | |

57.4 |

the marked price of a watch was rs. 720. a man bought the same for rs. 550.80, after getting two successive discounts, the first 10%.

14% | |

18% | |

12% | |

15% |

the marked price is 10% higher than the cost prica discount of 10% is given on the marked price, in this kind of sale the seller

loses 1% | |

bears no loss no gain | |

gains | |

none of these |

the list price of an article is rs.65. a customer pays rs.56.16 for it. he was given two successive discounts, one of them being 10%.

6% | |

3% | |

5% | |

4% |

the length of the wire of 0.2mm radius that can be drawn after melting a solid copper sphere of diameter 18cm?

243 m | |

2430 m | |

24300 m | |

24.3 m |