Which of the following is the physico-chemical component?

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#Question id: 12849

#General Aptitude

The radii of two concentric circles are 68 cm and 22 cm. The area of the closed figure bounded by the boundaries of the circles is

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#Question id: 12850

#General Aptitude

A plate on square base made of brass is of length x cm and width 1 mm. The plate weighs 4725 gm. If 1 cubic cm of brass weighs 8.4 gram, then the value of x is :

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#Question id: 12851

#General Aptitude

The length of two parallel sides of a trapezium are 15 cm and 20 cm. If its area is 175 sq.cm, then its height is :

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#Question id: 12852

#General Aptitude

The perimeter of two squares are 24 cm and 32 cm. The perimeter (in cm) of a third square equal in area to the sum of the areas of these squares is :

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#Question id: 12853

#General Aptitude

The perimeter of two squares are 40 cm and 32 cm. The perimeter of a third square whose area is the difference of the area of the two squares is

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#Question id: 12854

#General Aptitude

If the ratio of areas of two squares is 225 : 256, then the ratio of their perimeter is :