A group of 50 Engineering students are discussing the computer languages that they have learnt.
30 know Java
18 know C++
26 know C
9 know both Java and C++
16 know both Java and C
8 know both C++ and C
47 know at least one of the three languages.
(a) How many students know none of the 3 languages?
(b) How many students know all three languages?
(c) How many students know Java and C++ but not C?
(d) How many students know Java but neither C++ nor C?
Ron.
30 know Java
18 know C++
26 know C
9 know both Java and C++
16 know both Java and C
8 know both C++ and C
47 know at least one of the three languages.
(a) How many students know none of the 3 languages?
(b) How many students know all three languages?
(c) How many students know Java and C++ but not C?
(d) How many students know Java but neither C++ nor C?
Ron.