The area of a square is twice the area of a circle. The area of the circle is 392cm². What is the length of the side of the square?

The sum of five consecutiVe numbers is 190. What is the sum of the largest and the smallest number?

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)