46 . The length of a room is 1.5 times of its breadth. If the area of the room is 216 sq. meter, what is the perimeter of the room?
  • A. 42
  • B. 48
  • C. 54
  • D. 60
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47 . The lest number by which 1470 must be divided to get a number which is a perfect square is:
  • A. 5
  • B. 6
  • C. 15
  • D. 30
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48 . The perimeter of a rectangle is 200 meters. The breadth is 3/7 part of the length. What is the length?
  • A. 30m
  • B. 50m
  • C. 60m
  • D. 70m
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49 . The perimeter of a rectangular garden is 54 yards and the width is 36 feet. What is the length of the garden?
  • A. 12 yards
  • B. 13.716m
  • C. 15 feet
  • D. 27 feet
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50 . The solid brick shown is made of small square shaped bricks of side 1. when the large brick is disassembled into its component small bricks. the total surface area of all the small bricks is how much greater than the surface area of the large brick?
  • A. 32
  • B. 40
  • C. 60
  • D. 72
  • E. None of these
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51 . The sum of square of two numbers is 48 and the square of their diffrence is 16. The prodduct of the two number is-
  • A. 16
  • B. 17
  • C. 18
  • D. 32
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52 . The sum of square of two numbers is 80 and the square of their difference is 16. What is the product of the two numbers?
  • A. 10
  • B. 16
  • C. 30
  • D. 32
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53 . The sum of squares of two numbers ia 80 and the square of difference between two numbers is 36. Find the product of two numbers.
  • A. 17
  • B. 22
  • C. 33
  • D. 28
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54 . The sum of the angles of a square is:
  • A. 90°
  • B. 180°
  • C. 360°
  • D. 200°
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55 . The width of a rectangular field is 1/3 times its length. What is the area of the field if the length of the field is 120 yards?
  • A. 480 square yards
  • B. 5,000 square yards
  • C. 2,400 square yards
  • D. 4,800 square yards
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56 . There is a 2 meter wide road surrounding a pond which is 60 meters long and 40 wide. The area covered by the road is:
  • A. 480
  • B. 120
  • C. 1200
  • D. 4800
  • E. None of these
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57 . What is the are a of a square (in sq. meter) if its perimeter is 40 meter ?
  • A. 10
  • B. 100
  • C. 200
  • D. None of these
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58 . What is the area of a square ( in Sq. meter) if its perimeter is 40 meter ?
  • A. 10
  • B. 100
  • C. 200
  • D. None of these
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59 . What is the area of a square in square meter if its perimeter is 80?
  • A. 220
  • B. 300
  • C. 400
  • D. 600
  • E. None of them
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60 . What is the cost, in taka, of a carpet x yards long and y yards wide, if the cost of carpet is Tk. 5 per square ft.?
  • A. xy
  • B. 9xy
  • C. 25xy
  • D. 45xy
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