which of the following radioactive element Used to treat cancerous tumours

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#Question id: 12820

#Part-A Aptitude & General Biotechnology

The length of a room floor exceeds its breadth by 20 m. The area of the floor remains unaltered when the length is decreased by 10 m but the breadth is increased by 5 m. The area of the floor (in square metres) is :

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#Question id: 12821

#Part-A Aptitude & General Biotechnology

A street of width 10 metres surrounds from outside a rectangular garden whose measurement is 200 m × 180 m. The area of the path (in square metres) is

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#Question id: 12822

#Part-A Aptitude & General Biotechnology

In measuring the sides of a rectangle, there is an excess of 5% on one side and 2% deficit on the other. Then the error percent in the area is

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#Question id: 12823

#Part-A Aptitude & General Biotechnology

A lawn is in the form of a rectangle having its breadth and length in the ratio 3 : 4. The area of the lawn is 1/12 hectare. The breadth of the lawn is

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#Question id: 12824

#Part-A Aptitude & General Biotechnology

The area of a rectangle is thrice that of a square. The length of the rectangle is 20 cm and the breadth of the rectangle is 3/2 times that of the side of the square. The side of the square (in cm) is

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#Question id: 12881

#Part-A Aptitude & General Biotechnology

If the height of a cylinder is increased by 15 per cent and the radius of its base is decreased by 10 per cent then by what percent will its curved surface area change?