In a total of 36 vehicles after one car there is one scooter. After 2nd car there will be two scooters and after 3rd car there will be 3 scooters so on. Then find the number of scooters in the right half of arrangement.


a.12
b.13
c.14
d.15

• left half right half
  cscsscssscsssscsss|sscsssssscsssssssc
  
  so number of scooter in right half is 15...
  simply count the s in right half
• 11 years agoHelpfull: Yes(20) No(5)
• There will be 8 cars and 28 scooters in total arrangement of 36 vehicles.
  
  In right 18 vehicles, there will be 5 cars and 13 scooters.
  CSCSSCSSSCSSSSCSSS
  
  First 4 groups will have 4+4*5/2= 14 vehicles.( 4 cars and 10 scooters)
  Fifth group will have 1 car and 3 scooters.
• 11 years agoHelpfull: Yes(5) No(4)
• 13scooters in the right half of arrangement.
  1car+1 1car+2 1car+3 1car+4 1car+5 "1car+6 1car+7 1car' =13 (total=16 half of the 36 there for scooter only 13.)
  
• 11 years agoHelpfull: Yes(5) No(8)
• Answer: 15
  as half of 36 is 18 so the series of vehicles-
  2,3,4,5,6,7,8,car=36 and series of scooters-
  1,2,3,4,5,6,7=28 but after half way from series of vehicles=15
• 11 years agoHelpfull: Yes(3) No(1)
• 1c 1s -> 2 vechiles
  1c 2s -> 3
  1c 3s -> 4
  1c 4s -> 5
  1c 5s -> 6 , upto now total 20 vehicles
  1c 6s -> 7
  1c 7s -> 8 , now total vehicles arranged are 35
  1c.
  now count right half , no. of scooters = 7s+6s+2s = 15s.
  ans : 15 scooters
• 10 years agoHelpfull: Yes(1) No(0)
• answer is 15
• 8 years agoHelpfull: Yes(0) No(0)
• the answer is 15
• 4 years agoHelpfull: Yes(0) No(0)