Who discovered the antibiotic streptomycin, used to treat TB?
Selman Waksman, a noted biochemist and microbiologist, discovered streptomycin. This antibiotic was the first effective treatment for tuberculosis, significantly impacting public health.
In a jug, there is a mixture of apple and orange juice in the ratio of 1:3. When 10 liters of Apple juice are added, the ratio of apple to orange juice ...
Total population of city P and Q is 3740 and 4320 respectively. If the ratio of number of males to females in city is P and Q is 6:5 and 5:4 respectivel...
If (2x+3) :(5x+4), 3 times the ratio of 3:4 then find the value of x2
P, Q and R together started a business. Six times the investment of P equals seven times the investment of Q and the capital of Q is twice that of R. Fi...
There is a mixture of 63 liters of apple juice and water in a vessel. The ratio of apple juice to water is 3:4. If 14 liters of the mixture is taken out...
A sum of money is divided among P, Q, R and S in the ratio of 1:2:6:7 respectively. If the share of R's is Rs. 2860 more than the share of Q, then what ...
The ratio of personal income of last year of A and B is 12:25. The ratio of personal income of last year and current year of A and B is 4:7 and 5:2 resp...
If 60% of a certain number is equal to 2/3rd of another number, what is the ratio between the numbers?
40 liters of milk are kept in a container. 10 liters were removed and replaced with water. This procedure was performed two more times. How much milk do...
There are 56 rupees in a box which contains coins of 1 rupee, 50 paise, and 25 paise. If the number of 50 paise coins is 2 times the number of 25 paise ...
