It i s required to get 40% marks to pass an exam. A candidate scored 200 marks and failed by 8 marks. What were the maximum marks of that exam?

If the three fourth of a number is subtracted from the number; the value so obtained is 163.
What is that number?

If a number is multiplied by three-fourth of itself. the value thus obtained is 10800. What is that number?

Bina's monthly income is 90% of Anita's monthly income. The total of both their monthly incomes is Mr. Sen's monthly income. Mr Sen's annual income is Rs 7,75,200. What is Bina's monthly income? (In some cases annual income is asked and in some cases monthly income is asked)

What approximate value should come in place of the question mark (?) in the following question? (You are not ex peCted to calculate the exact value).

√343 = ?

The perimeter of a rectangle is 60 cms and its breadth is 12cms. What is the area of the rectangle?