Given the price of haircut is $6 and the rate per hour of the barber is $10
-the shop can provide 24 haircuts/ eight hr. a day by hiring one barber
-the shop can provide 42 haircuts/ eight hr. a day by hiring two barbers
One Barber
$6 x 24 haircuts = $144
$144 – ($10 x 8 hrs) = $64
Two Barbers
$6 x 42 haircuts = $252
$252 – ($20 x 8 hrs) = $92
$92 - $64 = $28/2 barbers = $14
The mrp of the 2nd barber is $14.