Question
Which of the following rice cultivation methods is most
water-use efficient and being increasingly adopted to address water scarcity?Solution
SRI uses young seedlings, wider spacing, and alternate wetting and drying. It significantly reduces water usage while maintaining or even increasing yield, making it a sustainable method under water-limited conditions.
Ramesh covered 300 km in total — part of the journey was by auto at 60 km/h, and the rest by walking at 6 km/h. If total time was 9.5 hours, what dist...
A biker travels at a speed of 23 km/hr for 7 hours each day on all days except Sunday. If his journey starts on a Wednesday, on which day will he reach ...
A train travels from Station A to Station B at a speed of 60 km/h and returns from Station B to Station A at a speed of 40 km/h. If the distance between...
A train travels from station ‘P’ to station ‘Q’ at a constant speed. If its speed was increased by 20 km/h, it would have taken 1 hour less to c...
Ram makes four trips of equal distances. His speed on first trip was 120 km/hr and in each subsequent trip his speed was half of the previous trip. What...
A thief snatched a lady's purse and began running north towards a bus that was 200 meters away. A policeman, who was standing 40 meters south of the lad...
Identify the cases where two objects moving in opposite directions have a relative speed of 30 km/h.
- A person completes a journey in 300 minutes by train at a speed of 60 km/h. What should be his speed by bus to cover the same distance in 7 hours?
A,B and C run around a Circular track starting from the same point simultaneously and in the same direction at the speed of 8 kmph, 12 kmph and 16 kmph ...
- Bus 'X' and Bus 'Y' start together from a station heading in the same direction. Bus 'X' moves at 18 km/h while Bus 'Y' moves at 30 km/h. Determine the dis...
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