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Aspergillus niger is a fungal microbe of great industrial importance. This mold is used extensively in the production of citric acid and in the production of several enzymes such as amylases, pectinases, and proteases (Godfrey and West, 1996).
If the student scores 25% marks then he is failed by 150 marks. But if he scores 55% marks then he is passed with 180 marks. Find the passing percentage?
A company manufactures two products, A and B, with production costs of 150 and 200, respectively. To meet market demand, the company raises the price of...
There are 100 students in a particular class. 60% students play cricket, 25 % play football and 15% play both the games. What is the number of students ...
The marks scored by a boy in three subjects are in the ratio 4 : 3 : 2. Boy scored an overall aggregate of 60% in the exam. If the maximum marks in each...
A man spent 40% of his income in May. If his savings is increased by 20% in June and becomes Rs. 5760, then find the income of man in May.
A bag contains 500 coins of 25p denomination and 1000 coins of 50p denominations. If 15% of 25p coins and 30% of 50p coins are removed, the percentage o...
A school sells notebooks at ₹20 each. If a student buys 10 notebooks and there is a 15% discount on the total price, what is the final amount the stud...
In a school with 800 students, the average of the age of the boys is 16 years and that of the girls is 12 years. If the average age of the school is 14 ...
Monthly savings of ‘A’ is Rs. 600 more than his monthly expenditure and his total monthly income is Rs. 5000. If his monthly income is increased by ...
The monthly income of Vivek and Sohan together is Rs. 46000. The income of Vivek and Sohan is increased by 20% and 30% respectively. The new income of ...
