Answer :
CP of two bikes = 200x Rs. Total profit = 20% = SP = 240x
Now on one bike, profit = 14% = SP = 114x
On other bike, SP = 100x + 4290 Rs
Equating both ==> 114x + 100x + 4290 = 240x
Finding x = 165. And CP of bike = 16500 Rs
Now on one bike, profit = 14% = SP = 114x
On other bike, SP = 100x + 4290 Rs
Equating both ==> 114x + 100x + 4290 = 240x
Finding x = 165. And CP of bike = 16500 Rs