

InterviewSolution
Saved Bookmarks
1. |
A green grocer earns a profit of ₹ 7 per kg of tomato and got loss of ₹ 4 per kg of brinjal by selling. On Monday he gets neither profit nor loss, if he sold 68 kgs of tomato. How many kgs of brinjal did he sell ? |
Answer» Given profit per kg of tomato = ₹ 7 Loss per kg of brinjal = ₹ 4 Weight of tomatoes sold = 68 kgs Let number of kgs of tomato be x kg. Number of kgs of brinjals be y kg. 7x – 4y = 0 7 × 68 – 4y = 0 – 4y = – 7 × 68 y = -7 x 68/-4 ∴ Weight of brinjals sold = + 7 × 17 = + 119 kgs. |
|