Let the distance to be travelled be ‘x’ km Time taken when speed is 48 km/hr = (x/48) hours Time taken when speed is 80 km/hr = (x/80) hours According to the question, (x/48) – (x/80) = 2 Or, 5x – 3x = 2 × 240 Or, x = 240 km Time taken to travel 240 km with speed of 48 km/hr = 240/48 = 5 hours Therefore, he started at 12 – 5 = 7 a.m. Therefore, required speed to reach the destination at 11 a.m. or 4 hours = 240/4 = 60 km/hr
Family of Sarpagandha (Rouvolfia serpentiana) and its use/property are
At what height, geostationary satellites are placed above the earth surface?
Sowing of a crop at an optimum date is an example for
Centre of origin of Gossypium herbaceum is:
Which nutrient is responsible for the pollen germination in wheat crop?
Which of the following is a key factor influencing consumer behavior in food retail management?
Polyploidy in plant is induced by:
The von Bertalanffy equation is frequently used in fisheries biology and fisheries management to estimate
The factor for conversion of ppm to kg/ha is:
____ is the only design in which principle of local control is not used.
