A man can row 25/2 km an hour in still water and he finds that it takes him thrice as long to row up as to row down the river. The rate of stream is:
Let the rate of stream be x km/hr Then, Speed of downstream = `(25/2) + x` km/hr Speed of upstream = `(25/2) - x` km/hr (12.5 + x) = 3 (12.5 - x ) 12.5 + x = 37.5 - 3x 4x = 25 x = 6.25 km/hr
Which of the following is not a vector quantity?
According to Agriculture statistics 2021-22, the wheat production is highest in which of the following state?
What is the pH of acidic soil?
An element has 8 electrons in its valence shell. Which of the following statements is correct?
Weed used to poison drinking water of the enemies during war time
Which of the following method is most effective in conferring disease resistance among distantly related species?
Match the following
a. Whiptail disease i) Potato
b. Dieback disease ii) Cauliflower
c. Khaira disease iii) Citrus
d. Early ...
Which cereal crop is most tolerant to saline and alkali soils
How many Primary Agricultural Credit Societies (PACS) are part of the pilot project for decentralized storage capacity?
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: The geostationary satel...
