Start learning 50% faster. Sign in now
Time taken by A to complete 100% work = 4 × 5 = 20 days Time taken by B to complete 100% work = 10 × 3 = 30 days L.C.M of 20 and 30 = 60 = Total work Efficiency of A = 60/20 = 3 units/day Efficiency of B = 60/30 = 2 units/day Worked done by A and B together in 9 days = (3 + 2) × 9 ⇒ 45 units Remaining work = (60 – 45) units ⇒ 15 units C can complete the remaining work in 6 days Efficiency of C = 15/6 = 2.5 units/day Total efficiency of B and C = (2 + 2.5) units/day ⇒ 4.5 units/day Now, 75% of total work = 75% of 60 units ⇒ 45 units Required time = 45/4.5 days ⇒ 10 days ∴ B and C can complete 75% work in 10 days
Which state/union territory has minimum percentage of area?
Which plants are mentioned as good options for hanging containers?
Enzymes accelerate the speed of biochemical reactions by :-
‘Bakanae’ disease in rice is caused by the fungus:
Which of the following is NOT an element of marketing mix?
Constraints in the adoption of INM
The term Retting is associated with which crop?
The first milk produced after parturition is called?
Prevention of food adulteration act was passed in which of the following year?
Which index is commonly used as a measure of grape maturity and quality in the context of viticulture?