(c) Let the CP of Bike-1 and Bike-2 be ₹ x and ₹ y. Then,
120
100
x= 24000 ⇒ x = ₹ 20000 and
85
100
y = 24000 ⇒ y = ₹ 28235.29 ⇒ y = ₹ 28235 Total SP of two bikes = ₹ (24090 x 2) = ₹ 48000 Total CP of two bikes = ₹ 48235 Now, gain/loss per cent =