Question

a shopkeeper sold a radio and a tape recorder together for rs 2900 there by making a profit of 10% on the radio and 20%on the tape recorder. by selling them for rs 2850,he would have made a profit of 20% on the radio and 10% on the tape recorder. find the cost prices of each.
sum with step please

Answer 1

he gained profit of rs 10%on radio=
$10 \div 100 \times 2900$
=290rs means the rate of radio is 290 rs. tape recordar=
$10 \div 100 \times 20$
= 2610