Point Q lies in between 5.3 and 5.4.

Among the choices, 5.35 lies between 5.3 and 5.4.

So, Q represents the decimal 5.35.

On the number line, 1.8 is very close to 1.81.

So, letter M best represents 1.81.

The decimal 1.52 is very much close to 1.5.

1.5 lies between the points G and H.

So, 1.52 would be located in between G and H.

On the number line, the line between 0 and 1 is marked into 10 equal divisions.

So, each division has a value of 0.1.

Thus the divisions are marked as 0.1, 0.2, 0.3,.........

The missing numbers after 0.6 are 0.7, 0.8 and 0.9.

The marked number is 0.9.

So, 0.9 is the correct answer.

The length between 0 and 1 is divided into 10 parts.

Each part represents 110.

The point X is marked on the 16^th part on the number line.

1610 = 1.6

So, 1.6 is the number represented by the point X on the number line.

On the number line, 2.4 is very close to 2.41.

So, letter O best represents 2.41.

On the number line, 2.4 is very close to 2.41.

So, letter O best represents 2.41.

The decimal 3.57 is very much close to 3.6.

3.6 lies between the points L and M.

So, 3.57 would be located between L and M.

The length between 0 and 1 is divided into 10 parts.

Each part represents 110.

The point N is marked on the 11^th part on the number line.

1110 = 1.1

So, 1.1 is the number represented by the point N on the number line.

On the number line, 2.2 is very close to 2.19.

So, letter N best represents 2.19.

The length between 0 and 1 is divided into 10 parts.

Each part represents 110.

The point Y is marked on the 21^th part on the number line.

2110 = 2.1

So, 2.1 is the number represented by the point Y on the number line.