Question
‘A’ alone can complete a work in 40 days
while ‘A’ and ‘B’ together can complete the same work in 30 days. How much percentage of the work, ‘B’ alone can complete in 66 days?Solution
Let the total work = L.C.M of 40 and 30 = 120 units Then, efficiency of ‘A’ alone = 120 ÷ 40 = 3 units/day Combined efficiency of ‘A’ and ‘B’ = 120 ÷ 30 = 4 units/day So, efficiency of ‘B’ = 4 – 3 = 1 units/day So, work done by ‘B’ alone in 66 days = 1 × 66 = 66 units So, percentage of work completed by ‘B’ = (66 ÷ 120) × 100 = 55%
Calculate the water conveyance efficiency if water delivered to the farm is 84 mm and water diverted from the source is 140 mm.
Fruit cracking is a serious problem of young fruits of pomegranate. It occurs due to deficiency of_______________
Self-help, Dignity of labour, Self-respect, Truth and non-violence are the principles of which project?
A person performs vegetable cultivation, fishery, woody crops but that is for self consumption. It is called as
Which of the following methods is used for maintaining breeder’s seed in self-fertilized crops?
Algae are primarily known for their chlorophyll-bearing and autotrophic nature. Red algae are characterized by the predominance of which pigment?
Pradhan Mantri Krishi Sinchai Yojana (PMKSY) was launched in the year___
Acidic soil does not contain which of the following property?
Among the following options, which weed is categorized as a total root parasite, meaning it relies entirely on its host plant's roots for nutrients and ...
The biological science which deals with the mechanism of heredity and causes of variations in living beings
