Question
The respective ratio between the time taken by a boat to
travel the same distance downstream in stream A and that in stream B is 7 : 5. The speed of the boat is 10 km/h and the speed of stream A is one third of the speed of stream B. What is the speed of stream B? (in km/h)Solution
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Two numbers are in the ratio 6:5. After adding 2 and 4 to them respectively the ratio becomes 2:3. Find the bigger number.
What number has to be added to each term of 2:5 to make the ratio 6:7?
The ratio of the incomes of Vineet and Vidya is 12:7 respectively. Vineet saves 25% of his income while Vidya saves 20% of his income. The sum of their ...
If the third proportion of 32 and 48 is “0.5k”, then find the value of (k − 44) : (k + 16).
Number of faculties in Physics and Biology in an institute is in the ratio of 3:5 respectively. If 75 more faculties join Physics, while 40 more faculti...
In a class, the ratio of boys to girls is 7:5. If 21 boys and 9 girls join the class, the ratio becomes 3:2. Find the original number of students.
The ratio of zinc and copper in a brass pieces is 4:7. How much zinc will be there in 110 kg of such a piece?
The ratio between the number of males and females in a college is 25: 26. If the number of males increases by 20% and the number of females increases by...
An integer 'p' is added to each of 12, 20, 36 and 48 so that the resulting numbers will be in proportion in given order only. Find the value of '(p + 4)'.
- If ‘A’, ‘B’ and ‘C’ are in proportion in the given order while ‘A’ = 16 and ‘B’ = 32, then find the value of ‘C’.
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