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Speed upstream = 15 - 5 = 10 km/h. Speed downstream = 15 + 5 = 20 km/h. Time upstream = 30 / 10 = 3 hours. Time downstream = 40 / 20 = 2 hours. Total time = 3 + 2 = 5 hours. Correct Option: a
6 years ago, the ratio of the ages of A and B was 2:3 and after 7 years it will become 3:4. Find their present ages.
The ratio of the present ages of Naresh and Supara is 7: 3. Three years from now, the ratio of their ages will be 2 : 1. The current age of Naresh is___...
Currently, Shweta and Rajni's ages are in the ratio of 5:4. Five years from now, the ages of Priya and Rajni will have a ratio of 7:5. Gautam is 10 year...
Sum of the present ages of A, B, C and D is 50 years. After 5 years ratio of their ages is 5:4:3:2. What is C’s present age?
In a classroom there are 15 boys and 12 girls. Average age of each boy and each girl is 21 years and 17 years respectively. The sum of ages of all the b...
The average ages of A, B and C is 20% more than the average ages of A and B. 10years hence from now, the ratio of the ages of A and C will be 3:5, respe...
B is 5 years older than A and A is 8 years older than C. If the sum of the age of A and C is 24 years, then find the sum of the ages of all three.Â
Sum of the present ages of A, B, C and D is 60 years. After 2 years ratio of their ages is 7:5:3:2. What is C’s present age?
‘A’ is 7 years younger than ‘B’ and 6 years elder than ‘C’. If the present age of ‘B’ and ‘D’ is 35 years and 24 years, respectively...
The sum of the present ages of 'P' and 'R' is 70 years. 'y' years ago from now, the age of 'R' was 40% more than that of 'P'. If '2y' years hence from n...
