Jharne De and Ranjana Kumar Solutions for Chapter: Commercial Mathematics, Exercise 4: Test Paper 1

What is $15\%$ of $35$?

Two-thirds of the students in a class of $36$ passed in their maths test. How many students did not pass?

Write $325\%$ as a fraction in its simplest form.

Convert $54\frac{3}{4}\%$ into decimal notation.

If $42$ men can dig a well in $14$ days, how many days will one man take to dig the same well?

In how much years will the interest on $₹2800$ at $11.5\%$ per annum be $₹2576$ ?

Monica takes $15$ days to complete a task, and Suman takes $10$ days to complete the same task. If both work together, how long will they take to complete the task?

In how many years will a sum of money triple itself at $10\%$ interest per annum?