Question
45 people can repair a road in 10 days working 6 hours a
day. In how many days can 30 people working 6 hours a day complete the same work?Solution
Let the hourly efficiency of 1 person be ‘x’ units/hour
Then, total work = 45x × 10 × 6 = 2700x
So, number of days taken by 30 people working 6 hours a day to complete the same work
= 2700x ÷ (30x × 6) = 15 days
More Time and work Questions
41.66% of 888 + 66.66% of 1176 = ?2 - 4√ 16 Â
Evaluate: 320 − {18 + 4 × (21 − 9)}
Simplify: 72 ÷ 6 × 3 − 8 + 4
118 × 6 + 13 + 83 = ?
Simplify the following expression:
  (400 +175) ² - (400 – 175) ² / (400 × 175)
150% of 850 ÷ 25 – 25 = ?% of (39312 ÷ 1512)
(75 + 0.25 × 10) × 4 = ?2 - 14
26% of 650 + 15% of 660 – 26% of 450 = ?
115% of 40 + 3 × 4 = ? × 11 – 8
