Book
Maths Puzzle
Numerical Ability
find the value of x when x is the mean proportion between x-2 and x+6
Read Solution (Total 1)
x^2=(x+6)(x-2)
thus we get x=3
10 years ago
Helpfull: Yes(2) No(2)
Book Other Question
x+y=7 xy=10 find x^3+y^3
find the numbers in the ratio 5:4 such that difference of cubes is 488