For the following questions answer them individually
The cost of a notebook increases in proportion to the number of pages in it. A notebook having 100 pages costs ₹20. Find the cost of a notebook having 400 pages.
A can complete 25% of a work in 10 days. B can complete 40% of the same work in 16 days. In how many days will A and B together complete twice the work mentioned above?
The ratio of the selling price and the cost price of an article is 1 : 2. What is the loss percentage?
The average daily expenditure of Mohan over 4 days is ₹120. If his expenditure on the first 3 days are ₹60, ₹150 and ₹140, respectively, then what is his expenditure on the $$4^{th}$$ day?
The average of seven consecutive even numbers is 12. If the next even number is also considered, then what will be the new average?
How many solid spheres of radius 3 cm can be formed by melting a bigger solid sphere of radius 24 cm?
₹21,000 is to be distributed between Raj and Karan such that Raj gets ₹9,000 less than Karan. What is the ratio of the amount received by Raj to that received by Karan?
The following bar graph shows the number of different types of animals in a zoo.
The number of deer is what percentage of the total number of animals in the zoo?
What is the value of x in the following equation?
$$[900 \div (11 \times 12 \div 4 \times 3 - 98)^{2}] = x$$
The following pie chart shows the number of leaves taken during a year by each of 6 different employees as percentages of the total number of leaves taken by these 6 employees, added together.
If the difference between the numbers of leaves taken by E2 and E5 is 14, then what is the total number of leaves taken during the year by all the 6 employees, added together?