Question
A and B can complete a task together in 14 days, while B
alone takes 28 days to finish it. A began working alone and left after ‘x’ days, after which B completed the remaining work in 21 days. Determine the percentage of the total work completed by A.Solution
Let total amount of work be 28 units
Efficiency of (A + B) = 28/14 = 2 units/day
Efficiency of ‘B’ = 28/28 = 1 unit/day
Amount of work done by ‘B’ = 21 × 1 = 21 units
Percentage of work done by ‘A’ = {(28 – 21)/28} × 100 = 25%
Example of C4 weed is
As per ISFR, 2021, what is the total forest cover in total geographical area of the country.
On which date is National Small Scale Industry Day celebrated annually in India?
Cauliflorous bearing habit i.e fruits are borne on trunk and branches, is found in which horticultural crop?Â
Growing crops and raising live stock to meet family need is called:
Among the following is a example of biennial weed ?
What is the meaning of climate change?
A situation when the rainfall deficiency is 25% or more of long term average, it is classified as
'Zea Mays everta' is the botanical name of -
"Brown Manuring", a recent approach of weed control which is mostly used in crop of -
