A ladder reaches a window 12 m above the ground on one side of the street. Keeping its foot at the same point, the ladder is turned to the other side of the street to reach a window 9 m high. If the length of the ladder is 15 m, then the width of the street is

1. 30 m

2. 24 m

3. 21 m

4. 18 m

If a side of a rhombus is 10 cm and one of the diagonals is 16 cm, then the length of the other diagonal is

1. 6 cm

2. 12 cm

3. 20 cm

4. 12 cm

A girl walks 200 m towards East and then she walks 150 m towards North. The distance of the girl from starting point is

1. 350 m

2. 250 m

3. 300 m

4. 225 m

The lengths of the diagonals of a rhombus are 16 cm and 12 cm. The length of the side of rhombus is

1. 9 cm

2. 10 cm

3. 8 cm

4. 20 cm