What is the term for a network of interconnected devices and objects that communicate and exchange data canover the internet?
At present, the ratio between the ages Karim and Rahim is 4 : 3. After 6 years, Karim's age will be 26 years. What is the age of Rahim at present?
49 × 49 × 49 × 49=7 ?
The smallest number added to 680621 to make the sum a perfect square is:
The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?
A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number?