A, B and C are three contestants in a km race. If A can give B a start of 40 m and A can give C a start of 64m how many metre's start can B give C ?

• In a 1000 m race, 'A can give B a start of 40 m' B runs (1000 - 40) = 960 m
  this says that To cover a race of 1000 metres, A will have to cover 1000 metres while B will have to cover only 960 metres
  similarly C runs = 936 m
  
  A : B = 1000 : 960.
  A : C = 1000 : 936.
  
  B : C = (B/A)*(a/C)= (960/1000)*(1000/936)=960/936
  When B runs 960 m, C runs 936 m.
  When B runs 1000 m, C runs (936/960)*1000 = 975 m
  B can give C start of 25 m.
• 11 years agoHelpfull: Yes(69) No(0)
• 64-40=24 is the answer
• 11 years agoHelpfull: Yes(8) No(39)
• very easy way.
  B can give 64-40 metres of its start
  answer 24
• 10 years agoHelpfull: Yes(1) No(10)
• ((1000-40)/(1000-64))*1000
  
• 9 years agoHelpfull: Yes(0) No(1)