Question

explain this answer :- and give correct answer ​

Answer 1

Answer:

rupees 31

B.31

Step-by-step explanation:

First hour = rupees 7

Every half hour = rupees 3

5-1=4

For 4 hours = 4*2*3

                    = 24

Therefore, 5 hours = 4 hours + first hour

                                = 7+24

                                = 31