Question
Which group of microorganisms is commonly used as
bio-fertilizers to fix atmospheric nitrogen?Solution
Certain species of bacteria, such as Rhizobium and Bradyrhizobium, are commonly used as bio-fertilizers to fix atmospheric nitrogen.
In what ratio rice at 58 Rs/kg should be mixed with the rice at 32 Rs/kg so that selling mixture at Rs 54 per kg gives the profit of 35% if the quantity...
In what ratio coffee at 320 Rs/kg should be mixed with the coffee at 370 Rs/kg so that after mixture its rate become 335 Rs/kg if the quantity of 1st ty...
Cost of two types of pulses is Rs.16 and Rs, 21 per kg, respectively. If both the pulses are mixed together in the ratio 2:3, then what should be the pr...
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A purchases a toy from B for ₹120 and sells it to C, earning a profit of 25%. If B also made a profit of 20% on selling the toy, what is the differenc...
A vessel contains 50 liters of a solution with 40% acid. 10 liters of this solution are removed and replaced with a solution containing 70% acid. The pr...
A man sold one shirt and one t-shirt for Rs. 4000 on shirt he gained 21% and he lost 14% on t-shirt. If overall profit is 7%, then cost price of t-shirt is
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A person purchased petrol and kerosene oil for Rs.62 per litre and Rs 55 per litre respectively. In what ratio should petrol be mixed with kerosene oil ...
Three Jar of equal volume contains milk mixed with water. The ratio of milk and water are 2:1, 2:3 and 4:5 respectively. Contents of these Jars are pour...
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