A skating champion moves along the circumference of a circle of radius 28 m in 44 sec. How many seconds will it take her to move along the perimeter of a hexagon of side 48 m? (a) 48   (b) 68    (c) 72     (d) 84      (d) 90

Two sources of sound are placed along the diameter of a circle of radius R(R gt gt 41) . How many minima will be heard as one moves along the perimeter of circle.

A train is moving at the speed of 72 km/hr. How many seconds will it take to cover a distance of 1400 m?

Four identical particles of equal masses 1kg made to move along the circumference of a circle of radius 1 m under the action of their own mutual gravitational attraction. The speed of each particle will be :

How many times should a wheel of radius 7 m rotate to go around the perimeter of a rectangular field of length 60 m and breadth 50 m? (a)3 (b) 4 (c)5 (d) 6

If a chord of a circle of radius 28 cm makes an angle of 90o at the centre, then the area of the major segment is (a) 392\ c m^2 (b) 1456\ c m^2 (c) 1848\ c m^2 (d) 2240\ c m^2

If area of a circle inscribed in an equilateral triangle is 48pi square units, then perimeter of the triangle is (a) 17sqrt(3) units (b) 36 units (c) 72 units (d) 48sqrt(3) units

A particle is moving with constant speed V m//s along the circumference of a circle of radius R meters as shown. A, B and C are three points on periphery of the circle and DeltaABC is equilateral. The magnitude of average velocity of particle, as it moves from A to C in clockwise sence, will be :

12 men can do a piece of work in 24 days.How many days are needed to complete the work,if 8 men do this work? 28 b.36c.48d.52

If the circumference of a circle is increased by 20%, what will be the effect on the circle? (a) 40% increase (b) 44% increase (c) 48% increase (d) Cannot be determined (e) None of these

A and B can cover a 200 m race in 12 seconds and 25 seconds respectively. When A finished the race, then B is at what distance from the finishing line? (a) 24 m (b) 30 m (c) 48 m (d) 54 m