book Maths Puzzle Numerical Ability

Why multiplying or dividing like sings yield a positive answer?
Why multiplying or dividing different signs yield a negative answer?

Read Solution (Total 0)

book Other Question

DIRECT VARIATION
Find an equation of variation where y varies directly as x and y=2 when x=10 find y when x = -25.
y=____
Thanks you very much use two unit multipiers to convert 366 centimeters to feet