Q. Which of the following is the language spoken by the largest number of people in the world? Answer:
Mandarin
Notes: Numbers vary widely — Ethnologue puts the number of native speakers at 1.3 billion native speakers, roughly 917 million of whom speak Mandarin — but there's no doubt it's the most spoken language in the world. If you wish to learn a language that one in six people in the world speak, this is the one for you.