A boy can swim a certain distance downstream in 4 hours and return in 7 hours. If the rate of stream is 6 kmph then what is the speed of boy in still water?
Let the speed of the boy in still water be x kmph. Then, (x + 6) × 4 = (x – 6) × 7 => 4x + 24 = 7x - 42 => 3x = 66 => x = 22 kmph
Which one of the following is an animal-origin insecticide?
The division of nucleus is known as:
Which of the following is a Rabi crop?
Which of following fungi is not used as a bio-control agent of plant diseases?
The World Trade Organization helps in facilitating this trade by providing a framework for negotiating the various trade agreements. Its headquarter is ...
Which one of the following is PMFBY Exclusion?
Supply chain lead time is the sum of time taken for ..........................?
When to irrigate wheat after sowing if only one irrigation water is available:
Pusa Himani is a variety of:
Which of the following countries is the centre of origin of rice?
