Question
Speed of a boat in still water is 4 times more than the
speed of stream. If boat covers 108 km in downstream in 9 hours, then find the time taken by the boat to cover 80 km in upstream.Solution
Let the speed of stream be ‘x’ km/hr. So, speed of boat in still water = 5 × x = 5x km/hr Downstream speed of boat = 5x + x = 6x km/hr According to question; 6x = 108/9 = 12 Or, x = 2 Upstream speed of the boat = 5x – x = 4x = 4 × 2 = 8 km/hr Required time taken = 80/8 = 10 hours
What technology is commonly used for processing and analyzing large datasets in today's data-driven world?
Which of the following is not a command in Insert tab ?
In the multilateral disaster relief exercise “Sanyukt Vimochan 2024,” which organizations participated alongside the Indian Armed Forces?
In computers, RAM stands for:
Which number system is used by computers to store data and perform operations?
Which generations computers operate Artificial Intelligence technology and ULSI Technology?
The maximum zoom percentage in MS-PowerPoint is
Which of the following types of ROM can be erased by exposing it to an electrical charge?
ENIAC belongs to which generation?
Which of the following generations of computer uses Transistors?
Relevant for Exams:
