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New Zealand has become the first country in the world to ban thin plastic bags. In New Zealand these plastic bags were used for fruits and vegetables in supermarkets. The government is expanding the campaign against single-use plastic, which was launched in 2019.
Number of faculties in Physics and Biology in an institute is in the ratio of 3:5 respectively. If 75 more faculties join Physics, while 40 more faculti...
P, Q and R together started a business. Five times the investment of P equals six times the investment of Q and the capital of Q is twice that of R. Fin...
In an office, the ratio of the number of males to number of females is 12:7. If 2 males joined the class and 8 females left the class, then the ratio of...
A plot has to be divided among P, Q and R in the ratio 2:5:8 respectively. If the area of plot received by R is 4200m² more than the area of plot recei...
In a class of 455 students, 255 are girls and remaining are boys. Among boys, the ratio of number of boys who are wearing caps to those who are not wear...
Determine the fourth proportional of 33, 28 and 132.
Find the mean proportion of 8.4 and 18.9.
Two years ago the ratio of annual salary of three friends P, Q and R is 4 : 3 : 5. Every year since then the salary of P, Q and R increases by 10%, 12% ...
The ratio between two numbers is 6:7. If each number is increased by 9, the ratio between then become 9:10, find the difference between numbers.
There are 70 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 ...