Question
The distance between two stations A and B is 900 km. A
train starts from A and moves towards B at an average speed of 30 km/hr. Another train starts from B, 20 minutes earlier than the train at A, and moves towards A at an average speed of 40 km/hr. How far from A will the two trains meet ?Solution
Distance covered by 2nd train in 20 minutes = (20/60) × 40 = 40/3 km Remaining distance = 900 – (40/3) = 2660/3km Time after which they will meet = [(2660/3)/70] hours Distance covered from A in this time = (2660/210) × 30 = 380 km
Which property of soil usually reflects the extent of leaching and weathering of soils?
Which factor significantly influences the decomposition rate of organic matter in soils?
Which of the following is the progeny of breeder seed and is responsible for producing certified seed?
Which of the following primary tillage operation is used to invert the soil partially or completely?
The study of soil from the stand point of higher plants is known as……………………….
Which factor most significantly influences soil bulk density?
The larger the soil aggregates, the greater is the amount of ……………………….pores.
The most suitable soil type for groundnut cultivation is _____
Which of the following actinomycetes is responsible for nitrogen fixation?
The liming material generally used for reclaiming acid soils
Relevant for Exams:
