Question
Speed of current is 25% of speed of boat in still
water, if boat travelled 45 km downstream and returned back in total 12 hr. then find speed of boat in still water?Solution
Speed of boat in still water : Speed of current = 100x : 25x => 4x : x According to question, => 45/(4x + x) + 45/(4x – x) = 12 => (135 + 225)/15x = 12 => x = 360/180 = 2 Speed of boat in still water = 4 × 2 = 8 km/hr
Simplify the following expression:
3.5 x 0.5 x (4.4 – 0.625 ÷ 1.5625)
The value of long-term investment in shares is subject to wide fluctuations. A provision created against fluctuation in value of investments is based on...
Which organ in the human body produces bile juice?
In Uttarakhand, which one of the following areas is not covered under the ‘State Integrated Co-operative Development Project?
What is the balance of trade of a country?
Who is the Union Minister of Tourism, as of March 2023?
What is the name of the Indian Air Force's aerobatic team?
'Golden Revolution' is related to ________.
Who is the author of the book ‘The Soul of a Butterfly: Reflections on Life’s Journey’?
‘Trump’ is a sports term used in __________.
Relevant for Exams:
