Answer:
220
Explanation:
Let us assume that x number of necklaces are to be fixed to break even i.e. cost price = profit.
Now, cost for x necklaces is 35x + 1650, and selling price is 85x. {As per given condition}
Therefore, profit will be = 85x - (35x +1650) =50x -1650
Hence, to make break even, the condition is
50x - 1650 = 35x + 1650
⇒15 x =3300
⇒ x =220.
Hence, 220 number of necklaces must the jeweler fix to break even. (Answer)