Al metal is extracted by electrolysis only. Aluminium is extracted by the electrolysis of alumina mixed with molten cryolite.
The value of
Find the unit digit in (257)45 × (248)73.
The sum of the five consecutive even numbers is 2720. The sum of the third and fifth numbers is:
In an examination, five students—A, B, C, D, and E—participated. The overall average score for these students was 58. Specifically, students A, C, a...
If the numerator of a fraction is increased by 200% and the denominator is increased by 400%, the resultant fraction is 9/25 . What was the original fra...
If the difference of two numbers is 4 and the difference of their squares is 56, then the larger number is
For a data set value of median and mean are respectively 8 and 5, then find the value of mode?
One-fourth of a number is 70. What will 40% of that number?
If x and y are two digits of the number 85254xy such that this number is divisible by 90. Find the minimum value of x + y?
