In a row at a bus stop, a is 7th from the left and b is 9th from the right. they both interchange their positions. a becomes 11the left. how many people are there in the row?
Answers
Answered by
6
________________________________________________________
a= 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 =b
19 people
Answered by
1
Answer:
19
Step-by-step explanation:
(Position from left + Position form right) - 1 = TOTAL NUMBER OF PEOPLE
(11+9)-1 = 19
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