4. 3.
49.
1.22 2/9%
2. 20%
3.25%
A alone can complete a work in 15 days, and the efficiency of A and B is

4. 3.
49.
1.22 2/9%
2. 20%
3.25%
A alone can complete a work in 15 days, and the efficiency of A and B is in the ratio of 2:3 respectively, in
how many days both A and B working together can complete the same work?
1. 6 days
2. 5 days
3. 8 days 4.7 days
5. 9 days
tinle at 30% discount on market price, he still gains a profit of 40%. Find out the​

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