Question

Que-3: A computer company must hire 20 programmers to handle system programming and 30 programmers to handle application programming. 5 programmers are supposed to perform job of both types. How many programmers must be hired?

Answer 1

Answer:

45

Step-by-step explanation:

no.of system programmers=20

no.of application programmers=30

programmers who are supposed to perform both jobs=5

therefore,

no.of only system programmers=20-5=15

no.of only application programmers=30-5=25

so,

total no. of programmers = 15+25+5

=45

Answer 2

Given:

A computer company must hire 20 programmers to handle system programming and 30 programmers to handle application programming. 5 programmers are supposed to perform job of both types.

To Find:

How many programmers must be hired?

Solution:

No. of system programmers = 20

no. of application programmers = 30

Programmers who are supposed to perform both jobs = 5

Therefore,

No. of only system programmers = 20 - 5 = 15

No. of only application programmers = 30 - 5 = 25

So,

Total no. of programmers = 15 + 25 + 5 = 45

Hence, 45 programmers must be hired.