Maths-
General
Easy

Question

A running track of 440 ft. is to be laid out enclosing a foot ball field, the shape of which is a rectangle with a semi – circle at each end. If the area of the rectangular portion is maximum, the lengths of the sides are

  1. 100 ft., 60 ft.    
  2. 70 ft, 50 ft.    
  3. 90 ft, 70ft.    
  4. 110 ft, 70ft    

The correct answer is: 110 ft, 70ft

Related Questions to study

General
Maths-

Assuming that stiffness of a beam of rectangular cross – section varies as the breadth and as the cube of the depth, for the stiffest beam which can be cut out of a circular beam of radius ‘r’, breadth must be equal to

Assuming that stiffness of a beam of rectangular cross – section varies as the breadth and as the cube of the depth, for the stiffest beam which can be cut out of a circular beam of radius ‘r’, breadth must be equal to

Maths-General
General
Maths-

A company desires to manufacture a large number of open metal boxes having a square bottom and a fixed volume of 32 c.c. If the metal used is minimum the dimensions of the box are

A company desires to manufacture a large number of open metal boxes having a square bottom and a fixed volume of 32 c.c. If the metal used is minimum the dimensions of the box are

Maths-General
General
Physics-

The emf of a cell depends on ...............

The emf of a cell depends on ...............

Physics-General
parallel
General
Physics-

The chemical energy of cell changes into .......... energy of electron

The chemical energy of cell changes into .......... energy of electron

Physics-General
General
Physics-

Germanium is a/an .........

Germanium is a/an .........

Physics-General
General
Physics-

........ is the path along which the current flows

........ is the path along which the current flows

Physics-General
parallel
General
Physics-

A girl of mass 40 kg climbs up stairs by spending 800J of energy How high does the girl climb up? [Take 2gms=10%]

A girl of mass 40 kg climbs up stairs by spending 800J of energy How high does the girl climb up? [Take 2gms=10%]

Physics-General
General
Physics-

The capacity to do work is called……

The capacity to do work is called……

Physics-General
General
Physics-

Kinetic energy of a body becomes doubled if

Kinetic energy of a body becomes doubled if

Physics-General
parallel
General
Physics-

The potential energy of a girl is maximum when

The potential energy of a girl is maximum when

Physics-General
General
Physics-

A man lifts a brick of mass 5 kg from the floor to a shelf 2m high How much work is done? (g=9.8 m/s2)

A man lifts a brick of mass 5 kg from the floor to a shelf 2m high How much work is done? (g=9.8 m/s2)

Physics-General
General
Physics-

The capacities of three capacitors are in ratio 1:2:3. Their equivalent capacity when connected in parallel is fraction numerator 60 over denominator 11 end fraction mu F more than that when they are connected in series. The individual capacitors are of capacities in mu F.

The capacities of three capacitors are in ratio 1:2:3. Their equivalent capacity when connected in parallel is fraction numerator 60 over denominator 11 end fraction mu F more than that when they are connected in series. The individual capacitors are of capacities in mu F.

Physics-General
parallel
General
Physics-

The concentric metallic shells are of radii r subscript 1 end subscript and r subscript 2 end subscript open parentheses r subscript 2 end subscript greater than r subscript 1 end subscript close parentheses. If charge given to outer sphere is q, and the inner sphere is ground. Then the charge on the inner sphere q to the power of 2 end exponent is

The concentric metallic shells are of radii r subscript 1 end subscript and r subscript 2 end subscript open parentheses r subscript 2 end subscript greater than r subscript 1 end subscript close parentheses. If charge given to outer sphere is q, and the inner sphere is ground. Then the charge on the inner sphere q to the power of 2 end exponent is

Physics-General
General
Physics-

ABC is an equilateral triangle of side 2m. If stack E with ‾ on top equals 10 N C to the power of negative 1 end exponent then V subscript A end subscript minus V subscript B end subscript is

ABC is an equilateral triangle of side 2m. If stack E with ‾ on top equals 10 N C to the power of negative 1 end exponent then V subscript A end subscript minus V subscript B end subscript is

Physics-General
General
Physics-

The variation of electric potential with distance d from a fixed point is as shown in the figure. The electric intensity at d=5m is

The variation of electric potential with distance d from a fixed point is as shown in the figure. The electric intensity at d=5m is

Physics-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.