SSC Selection Post Matric 20221)A shopkeeper mixes three varieties of tea costing Rs 60 per kg, Rs80 per kg, and Rs120 per kg in the ratio 5 : 8 : 7. At what price (in Rs) per kg should he sell the tea mixture to earn a 25% profit?
111.25
Let the amount of 3 varieties of teas be 5x, 8x, and 7x
Now,
Cost price of mixed quantity of tea = 60 × 5x + 80 × 8x + 120 × 7x
⇒ Rs. 1780x
Selling price of mixed tea = 1780 × 125%
⇒ 2225x
Total quantity of the mixed tea = 5x + 8x + 7x = 20x
So, price/kg = 2225x/20x
⇒ Rs. 111.25
SSC Selection Post Matric 20222)A person bought 20 kg of oranges at Rs. 64/kg, 25 kg of oranges at Rs. 56/kg and Rs. 35 kg of oranges at Rs. 60/kg. He mixed the three varieties. If he sells the whole lot at Rs. 63.75/kg, then his profit percentage is: (correct to the nearest integer)
15%