MH SET Exam 23 Jun 2019 Paper

In a classroom there are ten chairs in a row c₁, c₂, c₃, ........., c₁₀ which are labelled by numbers 1, 2, 3, .........., 10 arbitrarily but satisfying the condition that ki ≤ kj whenever i ≤ j, where k₁, k₂, k₃, ........., k₁₀ ​are the labels given to the chairs c₁, c₂, c₃, ........., c₁₀ respectively. Then which of the following is true ?