Question
A person travels 240 km partly by car and partly by
train. He spends 2 hours more traveling by train than by car. The speed of the car is 60 km/h, and the speed of the train is 40 km/h. Find the distance traveled by car.Solution
Let the time spent traveling by car be x hours. Then, the time spent traveling by train = x + 2 hours. Distance by car = 60x, and distance by train = 40(x + 2). Total distance = 60x + 40(x + 2) = 240 60x + 40x + 80 = 240 100x = 160 x = 1.6 hours Distance by car = 60 × 1.6 = 96 km Correct answer: b) 96 km
Pusa bedana is the popular variety of
Growing of erosion permitting and erosion resisting crops in alternate strips is known as.
Parasitic weed Striga lutea which mainly attacks sugarcane crop belongs to which category?
The trap crop for striga is
The weeds whose seed is difficult to separate from crop seed after contamination is called ___
Bengal famine (1943) was caused due to ____ disease which attacked ____ crop.
Crop failure due to prolonged dry spells during crop period and less than 75 days of crop growing season are the characteristics of which type of farming?
The science that deals withs the study of wine making is called as …………………………..
M ethod of cutting trees to ground level which leads to a strong vegetative response and the regeneration of new shoots from the base is known as:
...Cultivation of crops in areas receiving annual rainfall more than750 mm but less than 1150 mm is known as
