Question
Which German chemist was the first to show a graphical
representation of the periodicity of an atomic volume plotted against atomic weight?Solution
The correct answer is A
If 9 : 12 :: 12: x, and 28: 42:: 42: y, then the value of 2x + y is:Â
- If a, b and c are integers such that a 3 Â + b 3 Â + c 3Â = 192 + 3abc, ab + bc + ac = a 2 Â + b 2 ...
If x + y + xy = 118, such that x < y and both 'x' and 'y' are positive integers, then find minimum value of (x + y) .
If 3x + (1/3x) = 8 then find 27x3 + (1/27x3) = ?
The coefficient of ‘b2’ in (3a + b)3 is
The area (in sq, units) of the triangle formed by the graphs of 8x + 3y = 24, 2x+8 = y and the x – axis is:
The average of three numbers a, b and c is 2 more than c. The average of a and b is 48. If d is 10 less than c, then the average of c and d is:
If both the roots of x 2 Â + kx + 49 = 0 are real and equal, then find the value of 'k'.
A shopkeeper marked his article 25% above its cost price and offered a discount of 30%. If cost price of the article is Rs. 560, then find profit or los...
Relevant for Exams:
