Mathematics
A steel rod has a diameter of 2.25 cm. Express it in millimeters.
Open this question (full page)
The radius of a sphere is increased by 10%. The surface area increases by:
Open this question (full page)
Pieces from 42.5 m rod (85 cm each):
Open this question (full page)
-7m - [3n - {8m - (4n - 10m)}] = ?
Open this question (full page)
Who formulated basic laws of Geometry?
Open this question (full page)
Number of right angles formed between 1 pm to 10 pm:
Open this question (full page)
If 1/3 of the liquid contents of a can evaporates on the first day and 3/4 of the remainder evaporates on the second day, the fractional part of the original contents remaining at the close of the second day is:
Open this question (full page)
To pack 100 pairs of shoes into cases that each holds 20 shoes, how many cases are needed?
Open this question (full page)
There are four numbers. Average of the first three is 15 and that of the last three is 16. If the last number is 19 find the first number:
Open this question (full page)