If the ratio of the outer and inner perimeters of a circular path is 23 : 22 and the path is 5 m wide, then the diameter of the inner circle will be

The semi diameters of bases of two cylinders A and B are in the ratio 3:2 and their heights are in the ratio n:1. If volume of cylinder A is 3 times of volume of cylinder B, then value of n is –

If a:b=2:3, b:c=4:5, c:d=6:7 and a=24, then the value of a+b+c+d will be

Perimeter of a triangular field is 540 meter. The ratio of its arms is 5 : 12 : 13. The area of this field is

Ratio of Bus and Train fare is 4 : 5. If Bus fare increases by 10% and Train fare increases by 20%, new ratio of Bus and Train fare will be

In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quantity of water to be further added is: