book Maths Puzzle Numerical Ability

Please show me how to do this.

sqrt20/5 - 1/sqrt5

Only the 20 in the numerator is in the sqrt in the first half and only the 5 in the denominator is in the sqrt in the second half.

Thanks

Read Solution (Total 0)

book Other Question
the length of the room is 5 feet more than the width of the room. the perimeter of the room is 70 feet.find the length and width of the room. Which ordered pair is the solution of the following system of equations?
(
( 2x+ 3y = 7
( x+ y = 3
(