Question
Priya travels from station ‘M’ to station ‘N’.
If she moves at 45 km/h, she reaches 30 minutes early. If she moves at 30 km/h, she reaches 1 hour late. Find the distance between station ‘M’ and station ‘N’.Solution
Let the distance between station ‘M’ and station ‘N’ be ‘d’ km Let the correct time to travel be ‘t’ hours According to the question, (d/30) = t + 1 And, (d/45) = t - 0.5 Or, (d/30) - (d/45) = 1 + 0.5 = 1.5 Or, (3d - 2d) ÷ 90 = 1.5 Or, d = 1.5 × 90 = 135 Therefore, distance between station ‘M’ and station ‘N’ is 135 km.
If 120 liters of milk solution contains 60% milk, how much milk should be added to make the solution 80% milk?
If a wheel covers a distance of 880 m in 40 rotations, then the diameter of the wheel is?
A shopkeeper has 112 kg rice a part of it, he sells at the profit of 40% and rest at loss of 16% and he get the loss of 12% so what is the quantity sold...
17, 21, 48, 64, 170
The Price of 1 litre pure milk is Rs 50. By adding some water in it and selling the mixture at Rs 60 one gets 25% profit, then find the ratio of milk a...
A petrol pump has a blend of 40 liters of petrol and diesel in the ratio of 5:3. After selling 16 liters of the mixture, 12 liters of petrol are added t...
9 litre of milk is taken out from a container and replaced by water. This process is repeated once more, the ratio of quantity in container (M: W) is 16...
A luxury watch is originally priced at ₹15,000. During a seasonal sale, the watch is offered at a discount of 30%. After the discount, an additional 1...
In what ratio coffee at 265 Rs/kg should be mixed with the coffee at 305 Rs/kg so that after mixture its rate become 280 Rs/kg if the quantity of 1st ty...
In what ratio, tea costing Rs 35 per kg should be mixed with tea costing Rs 28 per kg so that a profit of 20% is earned when the mixture is sold at Rs 3...
Relevant for Exams:
