MONOTONIC PREFERENCES, INDIFFERENCE MAP AND MRS

Monotonicity At A Point|Testing Of Monotonicity Of Differentiable Function At A Point|Exercise Questions|Monotonicity Over An Interval|Exercise Questions|Greatest And Least Value Of A Function|OMR

In a queue, Mr X is fourteenth from the front and Mr Y is seventeenth from the end, while Mr Z is exactly in between Mr X and Mr Y. If Mr Xis ahead of Mr Y and there are 48 persons in the queue, how many persons are there between Mr X and Mr Z?

Monotonicity: Nature OF Graph || Monotonic function || Critical point || stationary point || Inequality based question