Question
Ratio of speed of boat in downstream and speed of stream
is 9:4, if speed of current is 8 km/hr, then find distance travelled (in km) upstream in 5 hours. Section 4Solution
Given: Ratio of (speed of boat in downstream) : (speed of stream) = 9 : 4 Speed of stream = 8 km/h Let common multiplier = k So, Speed of stream = 4k = 8 => k = 8 / 4 = 2 Speed of boat in downstream = 9k = 9 × 2 = 18 km/h Let speed of boat in still water = b km/h Speed of stream = 8 km/h Downstream speed = b + 8 = 18 => b = 18 - 8 = 10 km/h Upstream speed = b - speed of stream = 10 - 8 = 2 km/h Distance travelled upstream in 5 hours: = speed × time = 2 × 5 = 10 km
Which dynasty and capital is revealed in the Taleshwar copper plate?
Which of the following statements is true about Raja Ram Mohan Roy?
What is the budget allocated for the One Nation, One Subscription (ONOS) scheme for 2025-2027?
India's first solar roof cycling track was inaugurated in which city?
In which schedule of the Indian Constitution can you find the list of recognized languages of India?
Where will the Street 20 cricket tournament, exclusively for street children and featuring participants from 15 countries be held for the first time?
Who has resigned as chairman of the National Commission for Scheduled Tribes?
When is Global family Day observed in India?
Amazon Web Services (AWS) signed a strategic Memorandum of Understanding (MoU) with which two Indian organizations to support space-tech innovations thr...
The establishment of the Reserve Bank of India was influenced by the suggestions of which commission?
Relevant for Exams:
