How many liters of oil at Rs.40 per liter should be mixed with 240 liters of a second variety of oil at Rs.60 per liter so as to get a maximum whose cost is Rs.52 per liter? 120 110 180 160 TRUE ANSWER : ? YOUR ANSWER : ?
Tea worth Rs. 126 per kg and Rs. 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2. If the mixture is worth Rs. 153 per kg, the price of the third variety per kg will be: Rs. 180 Rs. 175.50 Rs. 169.50 Rs. 170 TRUE ANSWER : ? YOUR ANSWER : ?
8 litres are drawn from a cask full of wine and is then filled with water. This operation is performed three more times. The ratio of the quantity of wine now left in cask to that of the water is 16 : 65. How much wine the cask hold originally? 24 litres 18 litres 32 litres 42 litres TRUE ANSWER : ? YOUR ANSWER : ?
The diluted wine contains only 8 liters of wine and the rest is water. A new mixture whose concentration is 30%, is to be formed by replacing wine. How many liters of mixture shall be replaced with pure wine if there was initially 32 liters of water in the mixture? None of these 5 8 4 TRUE ANSWER : ? YOUR ANSWER : ?
A container of 90 liters with two liquids A and B, 60% of liquid A and 30% of liquid B are taken out of the vessel. This leaves the container 40% empty. Find the initial quantity of both liquids. 54 litres 60 litres 50 litres 57 litres TRUE ANSWER : ? YOUR ANSWER : ?
An alloy contains copper and tin in the ratio 3 : 2. If 250 gm of copper is added to this alloy then the copper in it becomes double the quantity of tin in it. What is the amount (in gm) of tin in the alloy? 1000 500 250 750 TRUE ANSWER : ? YOUR ANSWER : ?
A beaker contains acid and water in the ratio 1 : x. When 300 ml of the mixture and 50 ml of water are mixed, the ratio of acid and water becomes 2 : 5. What is the value of x? 4 1 2 3 TRUE ANSWER : ? YOUR ANSWER : ?
The average monthly salary of employees, consisting of officers and workers, of an organisation is Rs. 3000. The average salary of an officer is Rs. 10,000 while that of a worker is Rs. 2000 per month. If there are total 400 employees in the organisation, find the number of officers and workers separately. 310 , 90 50 , 350 250 , 150 300 , 100 TRUE ANSWER : ? YOUR ANSWER : ?
A person covers a distance of 100 kms in 10 hours, partly by walking at 7 km/hr and rest by running at 12 km/hr. Find the distance covered in each part. 72 kms 48 kms 108 kms 124 kms TRUE ANSWER : ? YOUR ANSWER : ?
A solution of sugar syrup has 15 % sugar. Another solution has 5 % sugar. How many liter of the second solution must be added to 20 liters of the first solution to make a solution of 10 % sugar? 5 10 20 15 TRUE ANSWER : ? YOUR ANSWER : ?