Question

of the same work in 10 days
(d) 270
2. If
Exercise 7.2:
Choose the correct option.
1. If 400 g cake costs < 90, the cost of 1.2 kg cake is
(a) * 180
(b) 220
(0) 250
4 m of cloth costs * 28, the cost of 21 m of cloth is
5
5
(a) 51
(b) 57
(c) 277
2
1
3. A can do of a certain work in 8 days and B can do
5
3
Working together, they will complete the work in
(a) 15 days
(b) 12 days
(c) 11 days
(d) 3 107
(d) 10 days​

Answer 1

Answer:

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