Question

There are eight mango trees in a straight line. The distance between each mango tree with other is 3 metres. What is the distance between first tree and eighth tree? ( A ) 30 ( B ) 21 ( C ) 27 ( D ) 24

Answer 1

Answer:

B) 21

Step-by-step explanation:

The distance between each tree =3

So, the distance between 8th and 7th = 3

7th and 6th =3and so on

8th to 7th + 7th to 6th + 6th to 5th + 5th to 4th + 4th to 3th + 3th to 2nd + 2nd to 1st

7 (3) =21

Answer 2

Answer:

1---2=3

2--3=3

3--4=3

4--5=3

5--6=3

6--7=3

7--8=3

so 7×3

=21

(B)21 m