Related Questions

Solution X contains 40% salt and 60% water by weights, Solution Y contains 25% salt and 75% water. If a mixture of X and Y contains 30% salt. What percent of the weight of this mixture is solution X?
A 10%
B 33.3%
C 40%
D 42.5%
Sea water can be purified by the process of
A Distillation
B Evaporation
C Filtration
D Fractional distillation
The largest brackish water lake situated in Asia is in Orissa. Which is the lake?
A Chilka lake
B Vembanad lake
C Woolar lake
D Dal lake
How many pounds of pure salt must be added to 30 pounds of a 2% solution of salt and water to increase it to a 10% solution?
A 23
B 83
C 63
D 75
Aluminium can be purified by
A Oxidation
B Distillation
C Electrolysis
D Ozonolysis
Colloids can be purified by
A Condensation
B Condensation
C Condensation
D Dialysis
Dust laden air can be purified using a
A Cyclone separator
B Bag filter
C Gravity settler
D Tubular centrifuge
How much salt must we add to 10 grams of a 20% salt solution to strengthen it into a 50% solution?
A 5 gm
B 3 gm
C 6 gm
D 4 gm
Due to a 25% increase in the price of salt, a person got 10 kg less quantity for Tk. 500 than he was getting before the increase.What was the initial price per kg of salt in taka?
A 10
B 15
C 25
D 30
A recipe for 4 servings requires salt and pepper to be added in the ratio of 2: 3 . If the recipe is adjusted to make 8 servings, what is the ratio of the salt and pepper that must now be added?
A 4: 3
B 2 : 6
C 2 : 3
D 3 : 2

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