a cricket match of 50 overs. every over has 6 balls. run rate is defined as the runs per over. like if 45 run in 10 over then run rate is 4.5. if in a match the run rate of the match is 7.8. how many times during the match it is exactly same as 7.8.
a)50 b)30 c)6 d)60 (not sure about the options)

• ans b.30
  total run rate is 7.8
  so per ball it is(7.8/6)= 1.3
  after 10 balls run will be (1.3*10)=13(run rate 7.8)
  so here total 300 balls are there and total (300/10)=30 times the run rate will be same as 7.8 during the match.
  
  
• 11 years agoHelpfull: Yes(45) No(19)
• The run rate will exactly be 7.8 after every 5 overs.
  after 1st over 7.8 run not possible.
  after 2nd over 7.8*2=15.6 run not possible
  after 3rd over 7.8*3=23.4 run not possible
  after 4th over 7.8*4=31.2 runs not possible
  after 5 overs 7.8*5=39 runs this is possible.
  
  Hence after 5,10,15,20.....50
  So, 10 times
• 10 years agoHelpfull: Yes(11) No(9)
• @ joyden why u calculated rum after 10 balls
  n used 300/10????
• 10 years agoHelpfull: Yes(3) No(4)
• a)50 coz for an over of 50 team has 7.8 as run rate
  per ball = 1.3
  1 over 6 ball=6*1.3 =>7.8/per over
  totally 50 overs so option a)50 suits think so!
• 10 years agoHelpfull: Yes(3) No(3)
• =>30
  
  total run rate is 7.8
  
  so per ball it is(7.8/6)= 1.3
  
  after 10 balls run will be (1.3*10)=13(run rate 7.8) i.e. in 10 balls its will be 13 runs
  
  total balls in 50 over game = 300 => (10*30)
  
  30 times the run rate will be same as 7.8 during the match.
• 10 years agoHelpfull: Yes(2) No(3)