Question

plz answer 12 q fasttttttt​

Answer 1

let cost price pen be x when it is sold to arjun at profit of 10%

when arjun sold pen to arpita rs 66 at 20% profit

66×20/100 =13.2 i.e 14

66+14=80

now 80×10/100=8

80-8 =72

so cost price of pen when it is sold to arjun was Rs 72