Speed of train ‘A’ = 108 × (5/18) = 30 m/sec Length of train ‘A’ = 30 × 6 = 180 metres Length of train ‘B’ = 180 – 120 = 60 metres Speed of train ‘B’ = 30 + (30/10) = 33 m/sec Required time taken = (180 + 60)/(30 + 33) = 3.80 = 4 seconds
Divide Rs 2,100 among P, Q and R, so that P shall receive 3/7 as much as Q and R together, and Q 2/3 of what P and R together receive. Find the share ...
Three containers have their volumes in the ratio 3 : 4: 5. They are full of mixtures of milk and water. The mixtures contain milk and water in the ratio...
Two numbers are in the ratio 3: 2. If 6 and 5 are subtracted from the first and the second number respectively, the ratio becomes 8: 5. The numbers are:
Ratio of runs scored by A, B and C is 3:10:8, respectively. Total number of runs scored by the team is 200, which is four times the runs scored by B. Fi...
Three positive numbers are in the 5:6: 7 ratio and the sum of their squares is 13,310. Find the sum of the three numbers
If the ratio of the sum invested and simple interest received after 1 year is 25:9 respectively, then find the rate of interest.
In what ratio should coffee powder costing Rs 2500/kg be mixed with coffee powder costing Rs 1500/kg so that the cost of the mixture is Rs 2250/kg?
A solution contains alcohol and water in the ratio 3:2. If 15 liters of water is added to the solution, the ratio becomes 3:5. What was the initial volu...
If the SP of book is 5 times of the discount. If percentage discount and percentage profit is equal. Then find the ratio of discount and CP?
A student's scores in four subjects are in the ratio 3:4:5:6. The student achieved an overall average of 72% on the exam. If the maximum possible score ...
