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13.99% of 299.99 ÷ 7.17 = ? ÷ 16.15 => 14% of 300 ÷ 7 = ? ÷ 16 => 42 ÷ 7 = ? ÷ 16 => ? = 6 × 16 = 96
A can do a work in 10 days and B in 15 days. If they work on it together for 4 days then in how many days the remaining work will be completed by B?
A istwice as efficient as B and can finish a piece of work in 22 days less than B. B can finish this work in how many days?