A, B and C can complete a work in 10 days, 20 days and 30 days respectively. A and C started the work together and they both work for 6 days. If the remaining work is completed by B and D in 3 days, then find the number of days taken by D to complete (1/5)th of the same work.
Let the total work (LCM of 10, 20 and 30) = 60 units Efficiency of A = 60/10 = 6 units/day Efficiency of B = 60/20 = 3 units/day Efficiency of C = 60/30 = 2 units/day Work done by A and C together in 6 days = 6 × (6 + 2) = 48 units Remaining work = 60 – 48 = 12 units Efficiency of D = (12/3) – 3 = 1 unit/day Number of days taken by D to complete (1/5)th of the same work = (60/5)/1 = 12 days
To protect farmers from sharp fall in farm prices. The minimum support prices are a guarantee price for their produce from the Government, MSP is announ...
Which one of the following is the plant part through which Napier grass is multiplied?
Ratooning is practiced in which of the following crops?
The pressure system is characterized by circular or elliptical isobars with the lowest pressure at the center is called
Under Mission Amrit Sarovar, each Amrit Sarovar will have pondage area of minimum of ____.
Fanging is related to
Acid soil can be amended with the help of
The measurement of drought is expressed in
National Seed Corporation was established in.
The Bureau of Indian Standards is the National Standards Body of India under Department of Consumer affairs, Ministry of Consumer Affairs, Food & Publi...