ITPEC IP October 2025 Question 51
ITPEC IP October 2025 — Question 51 of 100
Four new members are required — calculate the total work in equivalent days of an original member, then account for the lower productivity of each newcomer.
The planned work is 6 × 20 = 120 original-member-days. In 15 days the six existing members complete 6 × 15 = 90, leaving 30. One new member works at half productivity and contributes 15 × 0.5 = 7.5 equivalent days, so 30 ÷ 7.5 = 4 members are needed.
Answer (c)
Why not others:
- (a) 1 supplies only 7.5 of the missing 30 equivalent days
- (b) 2 supplies only 15
- (d) 6 would supply 45 and is more than the minimum
Key rule: Express all workers in one productivity unit before dividing the remaining workload by each added worker's contribution.
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