A. $35\sqrt2$ metres

B. $173\sqrt2$ metres

C.490 metres

D.$5\sqrt2$ metres

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2 .The ratio of sides of a triangle is 3 : 4 : 5 and area of the triangle is 72 square unit. Then the area of an equilateral triangle whose perimeter is same as that of the previous triangle is –

A. $32\sqrt3$ square unit

B. $48\sqrt3$ square unit

C. 96 square unit

D. $60\sqrt3$ square unit

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3 .From a solid cylinder whose height is 12 cm and diameter 10 cm, a conical cavity of same height and same diameter of the base is hollowed out. The volume of the remaining solid is approximately (π=$22\over7$) --

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4 .If the circumference of a circle increases from 4 π to 8 π , what change occurs in its area ?

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5 .Water flows at the rate of 10 metres per minute from a cylindrical pipe 5 mm in diameter. How long it take to fill up a conical vessel whose diameter at the base is 30 cm and depth 24 cm ?

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6 .

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7 .If the 'Printing-Cost' is ` 17500, the 'royalty' paid is –

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8 .If the "miscellaneous expenses" are ` 6000. How much more are "binding and cutting charges" than "Royalty" ?

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9 .The central angle corresponding to the sector on "Printing Cost" is more than that of "Advertisement Charges" by –

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10 .The "Paper Cost" is approximately what percent of "Printing Cost" ?

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