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Start learning 50% faster. Sign in nowTotal ways without restriction = 10C4 = 210 Ways with both individuals = 8C2 = 28 Valid committees = 210 - 28 = 182
A solution contains sugar and water in the ratio of 3:2. After removing 15 ml of this solution and adding 12 ml of sugar, the new ratio becomes 5:2. Wha...
A jar contains a mixture of mango juice and water in the ratio of 5:2. 84 litres of the mixture was taken out and 34 litres of water was added to it. If...
A can initially contains a mixture of glycerine and water, with 60 liters more glycerine than water. When 20% of this mixture is removed and replaced wi...
There are two containers having equal quantities of mixtures of two chemical types A and B. The 1st container contains 30% of type A chemical whereas th...
A container can hold 1,000 liters of liquid. If it is filled with 30% water and 70% oil, how many liters of oil are in the container? If 50 liters of oi...
A vessel contains 100 litres of mixture (milk + water) in which milk and water are in the ratio 5:5, respectively. If 30 litres of this mixture is taken...
A milkman has 80 liters of milk, and he removes 20 liters and replaces it with water. If he repeats the process twice more, how much milk remains in the...
A container holds a mixture of two liquids, A and B, in the ratio 2:3. If the total volume of the mixture is 70 liters, how many liters of liquid A must...