Question
The speed of a car is 30% more than that of a bike. Both
of them start from a same point. After travelling for 7 hours, the speed of the bike is increased by 35%. After 9 hours from starting, the car was 50 km ahead of the bike. Find the initial speed of the bike.Solution
Let the initial speed of the bike be ‘x’ km/hr Therefore, speed of the car = 1.30x km/hr According to the question, 9 × 1.30x – (7x + 2 × 1.35x) = 50 => 11.7x – 9.7x = 50 => x = 50/2 = 25 km/hr
The study of soil constitutes an independent branch of science known as:
Fertilizers, Pesticides, etc., are examples of
Kew, Queen or Mauritius are varieties of
Which tillage system involves leaving the soil undisturbed from harvest to planting, except for nutrient injection?
Which principle in experimental design involves grouping similar experimental units into blocks?
Which soil structure promotes optimal root growth and drainage?
Reforms aimed at improving institutional structures like tenancy laws and land ownership patterns to boost agricultural productivity are broadly known as:
What will be the cropping intensity of maize + urdbean - wheat rotation on 2 ha area?
_______ is the most widely used chemical for promoting seed germination.
_______is a band within the radial cell walls of endodermis that contain lignin.
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