Question

If in a conference of total 900 people. 400 are experts in Maths. 200 are experts in both Maths and Computers. Then how many are experts in
computers only?​

Answer 1

Answer:

300

Step-by-step explanation:

900 minus(400 plus 200)

Answer 2

Answer:

300

Step-by-step explanation:

first step-add 400 and 200

second-answer is 600

third-subtract 900-600

fourth-answer-300