How many number of executors will be created for a spark application?

[#1]

Hello All, In Hadoop MapReduce, By default, the number of mappers created is depends on number of input splits. For example, if 192 MB is your inpur file size and 1 block is of 64 MB then number of input splits will be 3. So number of mappers will be 3. The same way, I would like to know that, In spark, if i submit an application in standalone cluster(a sort of pseudo distributed) to process 750 MB input data, how many executors will be created in Sp

[#2]

Below post also talks about similar ask:

https://community.hortonworks.com/questions/92707/what-are-spark-executors-executor-instances-execut...