The number which on multiplying with $5\dfrac{2}{3}$ gives -$1\dfrac{2}{3}$ is:

1. $-\dfrac{5}{7}$

2. $\dfrac{5}{7}$

3. $-\dfrac{5}{17}$

4. $\dfrac{17}{5}$

If a, b and c are three rational numbers, we have:

1. (a x b) x c = (a x c) x (b x c)
2. (a + b) x c = (a + c) x (b + c)
3. a x (b - c) = a x b - a x c
4. a x (b - c) = a x b - c

The area of a rectangular paper is $7\dfrac{1}{3}$ cm². If its length $4\dfrac{2}{5}$cm, its breadth is:

1. $1\dfrac{3}{5}$cm

2. $1\dfrac{2}{3}$cm

3. $\dfrac{3}{5}$cm

4. $\dfrac{25}{60}$cm

The product of a rational number $\dfrac{2}{7}$ and its additive inverse is:

1. $\dfrac{4}{49}$

2. $\dfrac{-4}{7}$

3. 0

4. 1