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Let speed of car be s kmph Time taken by car travel total distance = 100/25 x 2 = 8 hrs Time taken by truck to cover total distance = 100/30 x 12 = 40 hrs so, s x 8 = (120 - s) x 40 8s = 4800 - 40s s = 100 so, riquired distance = 20 x 40 = 800 km
6 years ago ratio of the ages of the two persons A and B was 5:2. 4 years hence the ratio of their ages will be 7:4. Find the present age of B.
Marks scored by A and B in a test are in the ratio 13:4 respectively. If B had scored 6 more marks, then marks scored by A would be 30% more than that o...
A container holds 180 litres of a milk and water mixture, where the amount of milk exceeds the amount of water by 44 litres. If 8 litres of milk and 12 ...
What is the fourth proportion of 13, 20 and 26?
Three numbers are in ratio 5:6:7. If the sum of the squares of those three numbers is 440 then find the sum of the three numbers.
The ratio of two numbers A and B is 9:19 and C is 60% of the average of the numbers A and B. If the sum of A, B and C is 182, then what is the value of A?
Two numbers are in the ratio 7:4. After adding 2 and 6 to them respectively the ratio becomes 2:3. Find the bigger number.
A sum of money is divided among P, Q, R and S in the ratio of 3:4:8:9 respectively. If the share of R's is Rs. 2900 more than the share of Q, then what ...
A sum of money is divided among P, Q, R and S in the ratio of 8:9:13:14 respectively. If the share of R's is Rs. 1620 more than the share of Q, then wha...
The ratio of the two numbers is 3:7. 120% of the first number is equal to the 60% of the second number. Find the sum of both the numbers.
