Arrange the following bridges in increasing order of their strength.​

We need to arrange the bridges in increasing order of their strength, i.e., the one with the lowest strength would come first and one with highest strength would come last.

• Rope bridges are built using rope and wood. So, the rope bridge is the weakest.
• Cement bridges are built using cement, bricks, and iron rods. So, cement bridges are the strongest amongst all three.
• Bamboo bridges are built using bamboo sticks and rope. So, a bamboo bridge is stronger than a rope bridge.

So, the correct sequence of bridges in increasing order
is 1 < 3 < 2.