What is the least number of square tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad?

A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as the remainder. Th…

To write all the page numbers of a book, exactly 136 times digit 1 has been used. Find the number of pages in the book.

A magazine publisher publishes a monthly magazine of 84 pages. One I found that in a magazine 4 pages was missing. One o…

The sum of even numbers between 1 and 31 is:

The simplified value of $$\left( {1 - \frac{1}{3}} \right)$$ $$\left( {1 - \frac{1}{4}} \right)$$ $$\left( {1 - \frac{…

The greatest whole number, by which the expression n<sup>4</sup> + 6n<sup>3</sup> + 11n<sup&g…

Two alarm clocks ring their alarms at regular intervals of 50 seconds and 48 seconds. If they first beep together at 12 …