Scroll:Life Mathematics >> Life Mathematics - variation >> saq (4337)


Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.



 

1)  

 A car travels 68 km in  40 minutes. At the same rate, how many km will it travel in one hour

km


Answer:_______________




2)  

 A car travels 64 km in  45 minutes. At the same rate, how many km will it travel in one hour

km


Answer:_______________




3)  

 A car travels 80 km in  40 minutes. At the same rate, how many km will it travel in one hour

km


Answer:_______________




4)  

 A car travels 69 km in  44 minutes. At the same rate, how many km will it travel in one hour

km


Answer:_______________




5)  

 A car travels 65 km in  35 minutes. At the same rate, how many km will it travel in one hour

km


Answer:_______________




6)  

 A car travels 80 km in  41 minutes. At the same rate, how many km will it travel in one hour

km


Answer:_______________




7)  

 A car travels 74 km in  37 minutes. At the same rate, how many km will it travel in one hour

km


Answer:_______________




8)  

 A car travels 67 km in  37 minutes. At the same rate, how many km will it travel in one hour

km


Answer:_______________




9)  

 A car travels 66 km in  45 minutes. At the same rate, how many km will it travel in one hour

km


Answer:_______________




10)  

 A car travels 78 km in  44 minutes. At the same rate, how many km will it travel in one hour

km


Answer:_______________




 

1)  

 A car travels 68 km in  40 minutes. At the same rate, how many km will it travel in one hour

Answer: 102 km


SOLUTION 1 :

Given :

Distance travelled (km)Time taken (min)
     68     40 (x)
      (a)    60 (y)

As time taken increases, distance travelled also increases.

It is in direct variation.

 So, xy  = Constant

        4060 = 68a

               a=   (68x60)40

                   =   408040

                   = 102 km

      



2)  

 A car travels 64 km in  45 minutes. At the same rate, how many km will it travel in one hour

Answer: 85 km


SOLUTION 1 :

Given :

Distance travelled (km)Time taken (min)
     64     45 (x)
      (a)    60 (y)

As time taken increases, distance travelled also increases.

It is in direct variation.

 So, xy  = Constant

        4560 = 64a

               a=   (64x60)45

                   =   384045

                   = 85 km

      



3)  

 A car travels 80 km in  40 minutes. At the same rate, how many km will it travel in one hour

Answer: 120 km


SOLUTION 1 :

Given :

Distance travelled (km)Time taken (min)
     80     40 (x)
      (a)    60 (y)

As time taken increases, distance travelled also increases.

It is in direct variation.

 So, xy  = Constant

        4060 = 80a

               a=   (80x60)40

                   =   480040

                   = 120 km

      



4)  

 A car travels 69 km in  44 minutes. At the same rate, how many km will it travel in one hour

Answer: 94 km


SOLUTION 1 :

Given :

Distance travelled (km)Time taken (min)
     69     44 (x)
      (a)    60 (y)

As time taken increases, distance travelled also increases.

It is in direct variation.

 So, xy  = Constant

        4460 = 69a

               a=   (69x60)44

                   =   414044

                   = 94 km

      



5)  

 A car travels 65 km in  35 minutes. At the same rate, how many km will it travel in one hour

Answer: 111 km


SOLUTION 1 :

Given :

Distance travelled (km)Time taken (min)
     65     35 (x)
      (a)    60 (y)

As time taken increases, distance travelled also increases.

It is in direct variation.

 So, xy  = Constant

        3560 = 65a

               a=   (65x60)35

                   =   390035

                   = 111 km

      



6)  

 A car travels 80 km in  41 minutes. At the same rate, how many km will it travel in one hour

Answer: 117 km


SOLUTION 1 :

Given :

Distance travelled (km)Time taken (min)
     80     41 (x)
      (a)    60 (y)

As time taken increases, distance travelled also increases.

It is in direct variation.

 So, xy  = Constant

        4160 = 80a

               a=   (80x60)41

                   =   480041

                   = 117 km

      



7)  

 A car travels 74 km in  37 minutes. At the same rate, how many km will it travel in one hour

Answer: 120 km


SOLUTION 1 :

Given :

Distance travelled (km)Time taken (min)
     74     37 (x)
      (a)    60 (y)

As time taken increases, distance travelled also increases.

It is in direct variation.

 So, xy  = Constant

        3760 = 74a

               a=   (74x60)37

                   =   444037

                   = 120 km

      



8)  

 A car travels 67 km in  37 minutes. At the same rate, how many km will it travel in one hour

Answer: 109 km


SOLUTION 1 :

Given :

Distance travelled (km)Time taken (min)
     67     37 (x)
      (a)    60 (y)

As time taken increases, distance travelled also increases.

It is in direct variation.

 So, xy  = Constant

        3760 = 67a

               a=   (67x60)37

                   =   402037

                   = 109 km

      



9)  

 A car travels 66 km in  45 minutes. At the same rate, how many km will it travel in one hour

Answer: 88 km


SOLUTION 1 :

Given :

Distance travelled (km)Time taken (min)
     66     45 (x)
      (a)    60 (y)

As time taken increases, distance travelled also increases.

It is in direct variation.

 So, xy  = Constant

        4560 = 66a

               a=   (66x60)45

                   =   396045

                   = 88 km

      



10)  

 A car travels 78 km in  44 minutes. At the same rate, how many km will it travel in one hour

Answer: 106 km


SOLUTION 1 :

Given :

Distance travelled (km)Time taken (min)
     78     44 (x)
      (a)    60 (y)

As time taken increases, distance travelled also increases.

It is in direct variation.

 So, xy  = Constant

        4460 = 78a

               a=   (78x60)44

                   =   468044

                   = 106 km