Two unemployed young men decided to start a business together. They pooled in their savings, which came to Rs. 2,000. They were both lucky, their business prospered and they were able to increase their capital by 50 per cent every three years. How much did they have in all at the end of eighteen years?
option
(a) Rs. 22,781.25
(b) Rs. 24,150.25
(c) Rs. 28,140.50
(d) Rs. 18,000

• In every 3 yrs it will be 1.5 times
  
  there are 5 such sessions will come
  
  amount after 3 yrs is (2000)*(1.5)
  
  amount after 6 yrs is ((2000)*(1.5))*(1.5)
  
  amount after 9 yrs is (((2000)*(1.5))*(1.5))*1.5=2000*(1.5)^3
  
  amount after 18 yrs is 2000*(1.5)^6
  
  =2000*11.390625
  
  =22781.25
• 14 years agoHelpfull: Yes(7) No(0)
• the initial amount is 2000 it will by increased by half of the amount during every 3 years
  so, 3rd year 2000+(2000/2)=3000
  6th year 3000+(3000/2)=4500 like wise,
  18 th year rs 22,781.25
• 14 years agoHelpfull: Yes(2) No(0)