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Carbon dioxide (CO 2 ) efficiently inhibits surface growth by a range of aerobic bacteria and fungi by reducing relative oxygen levels and/or exerting direct antimicrobial effects (at concentrations of CO 2 between 10% and 80%) in food packaging.
If A:B = 7:6 and B:C = 12:15 respectively, then find the value of (A + C) :(A + B) .
Monthly savings of ‘Q’ is 20% more than that of ‘P’ and is 54% less than monthly income of ‘P’. Monthly expenditure of ‘Q’ is Rs. 5730 a...
The ratio of investment of A and B is 2 : 5 and that of B and C is 3 : 7. Find the investment of B if sum of investment of A, B and C is Rs. 33600.
If the mean proportion between 98 and 8 is denoted by 'k', then determine the ratio of (k + 4) to (k - 8).
In an office, the ratio of the number of males to number of females is 9:4. If 2 males joined the class and 8 females left the class, then the ratio of ...
In the comparison between Colleges P and Q, the student ratio is 6:5, and in the relation between Colleges R and P, the ratio is 13:10. Additionally, th...
Average run per wicket of a bowler is 11.5. In his next innings bowler took 5 wickets and conceded 40 runs, thereby he reduced his bowling average by 0....
A sum of Rs. 720 is divided among X, Y and Z such that X gets Rs. 124 more than Y. Y gets Rs. 64 more than Z. Find the share of Z?
The total number of students in a school is 20100. If the ratio of boys to the girls in the school is 63:71 respectively, then find the total number of ...
