The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 kms in 4 hours, then the speed of the first train is : November 17, 2019 by Rimpa a) 70 km/hr b) 75 km/hr c) 84 km/hr d) 87.5 km/hr. View AnswerOption – d. Similar QuestionsThe incomes of two persons A and B are in the ratio 3 : 4. If each saves Rs.100 per month, the ratio of their expenditures is Rs. 1 : 2. Find their incomes.A and B can do a work in 4 hours and 12 hours respectively. A starts the work at 6 AM and they work alternately for one hour each. When will the work be completed?Which Indian received the Nobel Peace Prize after Mother Teresa?“Chief Minister’s Award” has been launched by which state government to reward districts adopting digital payments?Find compound interest on Rs. 7500 at 4% per annum for 2 years, compounded annually.Reptile is to Lizard as Flower is toWhat is x squared plus x squared?Which state of india has the smallest land area?In Which part of the Windows 2000 architecture do applications run in?“National Youth Day” is celebrated on which day ?