Answer:
145 students are expected to join the fifth week.
Step-by-step explanation:
Problem
On the first week, 25 students joined the conference. 30 more students joined in the second week, another 30 students joined in the third week and so on. Assuming that the number of participants continues to increase in the same manner, how many participants were expected to join the fifth week?
Solution:
1st week-25
2nd week-25 + 30 = 55
3rd week-55 + 30 = 85
4th week-85 + 30 = 115
5th week-115 + 30 = 145
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