Question
Speed of a boat in still water is 15 kmph and speed of
stream is 12 kmph. A man rows to a place at a distance of 81 km and come back to starting point. The total time taken by him is:Solution
Rate upstream = 15 – 12 = 3 kmph Rate downstream = 15 + 12 = 27 kmph Time taken to go upstream = 81/3 = 27 hr Time taken to go downstream = 81/27 = 3 hr Total time = 27 + 3 = 30 hrs
Which of the following is not true about DNA?
An aquatic dragonfly that undergoes the incomplete metamorphosis has six legs, a head with compound eyes and antennae, and a �...
The instrument used to measure the soil strength is known as
What is the primary function of Woody Hedgerows in Agroforestry?
The middle layer of the world's oceans receives only faint,filtered sunlight during the daytime. This barely-lit ocean layer is called the Disphotic zon...
Which of the following is NOT an element of marketing mix?
Identify the scheme which consolidate the existing rural road network by upgradation of existing ‘Through Routes’ and ‘Major Rural Lin...
As per the First Revised Estimates released on 29th January 2021, according to National Statistical Office Ministry of Statistics & Programme Implementa...
Soil testing provides
Which chemical is commonly used for delinting cotton seeds before sowing?
Relevant for Exams:
