if mangoes are loading into a lorry in a manner such that
1 min -1 mango
2min-2mangoes
3min-4 mangoes
4min-8 mangoes
5min-16mangoes
if a lorry was loaded fully for an hour ,how much time it takes to fill half of the lorry.....?

• 
  59 minutes
  
  fully load in 1 hr = 60 min
  so, half load in 59 minutes.
• 9 years agoHelpfull: Yes(7) No(2)
• in 1 min= 2^0
  in 2 min=2^1
  in 3 min=2^2 i.e. 2^(n-1)
  so in 60 min= 2^59 will be the ans.
• 9 years agoHelpfull: Yes(1) No(0)