Question

plz give ans of 3no

Answer 1

P=?
R=10%
CI-SI=Rs 180
SI= PRT/100
=10×1P/100=P/10 ___________(i)
CI= P(1+R/200)² -P (HALF YEARLY)
CI= P(210/200)²-P
CI=(441P/400) -P
CI=41P/400___________(ii)
Diff. = CI-SI= 41P/400 - P/10=P/400
But, given, diff.= 180
Therefore,
180=P/400
P=Rs 72000.
i think this is the right one. Thank you.