The ratio of the areas of a regular hexagon and an equilateral triangle having same perimeter is

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2 .

A hollow cylindrical tube 20 cm long, is made of iron and its external and internal diameters are 8cm and 6 cm respectively. The volume of iron used in making the tube is:

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3 .

A solid hemisphere is of radius 11 cm. The curved surface area in sq. cm is:

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4 .

A wire when bent in the form of an equilateral triangle encloses a region having area of 121$\sqrt 3$ $cm^2$. If the same wire is bent into the form of a circle, the area (in $cm^2$) enclosed by the wire is:

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5 .

Each side of a rectangular field is diminished by 40%. By how much percent is the area of the field diminished?

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6 .

Total sales in $2^{nd}$ and $3^{rd}$ years together is :

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7 .

The $2^{nd}highest sale is in the year:

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8 .

The $2^{nd}$least sale is in year:

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9 .

The mean of the highest and the lowest sale (in Rs. Crore). Is:

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10 .

The sale in the year 4 is less than the sale in the year 8 by:

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