https://foxoyo.com/mcq/24881/in-a-queue-mrx-is-fourteenth-from-the-front-and-mr-y-is-seventeenth-from-the-end-while-mrz-is-exactly-in-between-mr-x-is-ahead-of-mr-y-and-three-are-48-persons-in-the-queue-how-many-persons-are-there-between-mr-x-and-mr-z