Question
6 skilled workers can complete a work in 4 days. After
three days 3 more skilled workers joined them. How many days will they now take to complete the remaining work?Solution
Total work: 6 workers × 4 days = 24 worker-days Work done in 3 days by 6 workers= 6 workers × 3 days = 18 worker-days Remaining work= 24-18=6 worker-days New total workers= 6+3= 9 workers Days to complete remaining work=6/9 worker-days =2/3 days
More Previous year papers Questions
√3598 × √(230 ) ÷ √102= ?
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...(53 + 480 ÷ 4)% of 20 = ?% of 70
Find the simplified value of the following expression:
62 + 122 × 5 - {272 + 162 - 422}
(15 × 225) ÷ (45 × 5) + 480 = ? + 25% of 1240
√ [? x 11 + (√ 1296)] = 16
11 × 25 + 12 × 15 + 14 × 20 + 15 = ?
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