71. A mixture contains alcohol and water in the ratio of 4:3. If 5 liters of water is added to the mixture, the ratio becomes 4:5. Find the quantity of alcohol in the given mixture.
(A) 10 litres
(B) 15 litres
(C) 12 litres
(D) 13 litres
Answer:
Explanation:
72. Tarun got 30 percent concession on the labelled price of an article and sold it for Rs. 8750 with 25 percent profit on the price he bought. What was the labelled price?
(A) 10000
(B) 12000
(C) 16000
(D) 18000
Answer:
Explanation:
73. At what percentage above the Cost Price must an article be marked so as to gain 33 percent after allowing a customer a discount of 5 percent?
(A) 30 percent
(B) 40 percent
(C) 20 percent
(D) 10 percent
Answer:
Explanation:
74. The cost price of 21 articles is equal to selling price of 18 articles. Find the gain or loss percent.
(A) 16.66 percent
(B) 10 percent
(C) 15 percent
(D) 12 percent
Answer:
Explanation:
75. In an examination, 35 percent candidates failed in one subject and 42 percent failed in another subject while 15 percent failed in both the subjects. If 2500 candidates appeared at the examination, how many passed in either subject but not in both?
(A) 3250
(B) 1175
(C) 2125
(D) 2025
Answer:
Explanation: