Question

Prem shoulder Trance Sita to Sudhir at a gain of 10% and Sudheer solve it to Hari at a gain of 15% Prem had bought it for rupees 500 what did it cost to Hari

Answer 1

CP of Prem=500
SP for Prem =500+10%×500=550
i..e. CP for sudheer
SP for sudheer
=550+15%×550
=550+3/20×550
=550+82.5
=632.5
i.e. CP for Hari

Hope it helps