What does the acronym 'DNS' stand for in networking?
The product of two numbers is 2028, and their H.C.F is 13. The number of such pairs is:
What is the square root of 0.16?
A positive number, when decreased by 4, is equal to 21 times the reciprocal of the number. The number is:
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 ?