A certain sum of money amounts to Rs. 1008 in 2 years and to Rs.1164 in 3 ½ years. Find the sum and rate of interests.

700, 13%

700, 15%

800, 13%

800, 15%

S.I. for 1½years = Rs.(1164-1008) = Rs.156 S.l. for 2 years = Rs.(156*(2/3)*2)=Rs.208 Principal = Rs. (1008 - 208) = Rs. 800 Now, P = 800, T = 2 and S.l. = 208 Rate =(100 * 208)/(800 * 2)% = 13%

will you please elaborate the 2nd line i.e s.i for 2yrs = Rs. (156*2/3*2) how did write 2/3

Back To Top