"The driver applied the _______ as soon as she approached the hotel where she wanted to take a ________."

The words that best fill the blanks in the above sentence are

"It is no surprise that every society has had codes of behaviour; however, the nature of these codes is often _________."

The word that best fills the blank in the above sentence is

Tower A is 90 m tall and tower B is 140 m tall. They are 100 m apart. A horizontal skywalk connects the floors at 70 m in both the towers. If a taut rope connects the top of tower A to the bottom of tower B, at what distance (in meters) from tower A will the rope intersect the skywalk?

The price of a wire made of a superalloy material is proportional to the square of its length. The price of 10 m length of the wire is Rs. 1600. What would be the total price (in Rs.) of two wires of lengths 4 m and 6m?