it takes the pendulum of a clock 7 sec to strike 4'o clock. how much time will it take to strike 11'o clock?
i)18 sec
ii)20 sec
iii)19.25 sec
iv)23.33 sec

• 4 -> 7 sec
  1 -> 7/4 sec
  11 -> 7/4*11
  = 19.25 sec
  Ans. iii)
• 11 years agoHelpfull: Yes(4) No(3)
• it takes 7sec for 4 o clock. 4-1=3 rounds.
  
  7/3=2.33
  for 11 o clock 11-1=10 rounds
  10*2.33=23.33
  
  ans is 4
• 9 years agoHelpfull: Yes(4) No(2)
• 19.25 sec i suppose by multiplying (7/4)*11 ie... 7 sec to 4 strikes den for 1 strike i t should be(7/4) and for 11 it should be (7/4)*11
• 11 years agoHelpfull: Yes(1) No(3)
• A more detailed solution here:
  
  It takes the pendulum of a clock 7 seconds to strike 4 O’clock. How much time will it take to strike 11 O’clock?
• 9 years agoHelpfull: Yes(0) No(3)