Question
Speed of a boat in still water to speed of boat in
upstream is 9: 5. If the boat can travel 221 km in downstream in 5 hours, then find the time taken by the boat to cover 38.25 km in still water.Solution
Let speed of boat in still water and speed of boat in upstream be ‘9x’ km/h and ‘5x’ km/h, respectively. Speed of stream = 9x – 5x = 4x km/h Speed of boat in downstream = 9x + 4x = 13x km/h So, 13x = 221/5 => x = 3.4 Speed of boat in still water = 9 × 3.4 = 30.6 km/h Desired time = 38.25/30.6 x 60 = 75 minutes
The word Crown cleaning related to which of the following crop?
Which of the following is true about the Kisan Credit Card (KCC) scheme in relation to the fisheries sector?
Benzoic acid is mostly used to preserve colored products bec
The term pulsing is related to-
Kufri Pukhraj, Kufri Sheetman and Kufri Alankar are varieties of
It is plan of activities to be undertakon in a particular time sequence.
Which propagation method is correctly matched with the fruit crop in horticulture?
Rooting of shoot, stems or branches while they are still attached to the parents is called a___.
Coverage area of knapsack sprayer (hand operated) is _____
Thrips transmits plant virus belongs toÂ
