Mathematics & Logic
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886
The ratio of the incomes of two persons is 5:3 and that of their expenditures is 9:5. If they save ₹1300 and ₹900 respectively, their incomes are:
Medium
Mathematics & Logic
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887
Two alloys contain tin and iron in the ratio 1:2 and 2:3. If the two alloys are mixed in the proportion of 3:4 by weight, the ratio of tin and iron in the newly formed alloy is:
Hard
Mathematics & Logic
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888
If 10% of x is the same as 20% of y, then x:y is:
Easy
Mathematics & Logic
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889
In a school, there are 720 students and the ratio of boys and girls is 7:5. How many more girls should be admitted to make the ratio 1:1?
Medium
Mathematics & Logic
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890
The ratio of the areas of two squares is 9:1. The ratio of their perimeters is:
Easy
Mathematics & Logic
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891
What number should be added to each of 7, 16, 43, 79 so that they form a proportion?
Medium
Mathematics & Logic
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892
The ratio of age of Ram and Shyam is 4:5. If the sum of their ages is 81, what is Shyam's age after 9 years?
Easy
Mathematics & Logic
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893
If $a/b = c/d = e/f = 3$, then $(2a^2 + 3c^2 + 4e^2) / (2b^2 + 3d^2 + 4f^2)$ is equal to:
Hard
Mathematics & Logic
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894
Two numbers are in the ratio 1:2. If 7 is added to both, their ratio changes to 3:5. The greatest number is:
Medium
Mathematics & Logic
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895
A mixture of 40 litres of milk and water contains 10% water. How much water should be added to this so that water may be 20% in the new mixture?
Medium
Mathematics & Logic
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896
The mean proportional between 64 and 225 is:
Easy
Mathematics & Logic
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897
If $x/y = 3/4$ and $8x + 5y = 22$, then the value of x is:
Medium
Mathematics & Logic
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898
Three containers have their volumes in the ratio 3:4:5. They are full of mixtures of milk and water in ratios (4:1), (3:1) and (5:2) respectively. The contents of all these three containers are poured into a fourth container. The ratio of milk and water in the fourth container is:
Hard
Mathematics & Logic
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899
The ratio of the incomes of A and B is 3:4. The ratio of their expenditures is 4:5. Can you determine their savings ratio?
Medium
Mathematics & Logic
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900
A dog takes 3 leaps for every 5 leaps of a hare. If one leap of the dog is equal to 3 leaps of the hare, the ratio of the speed of the dog to that of the hare is:
Hard
Mathematics & Logic
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