Question

in a row of boys oliver is standing 10th from the right and 15th from the left. how many more boys should be added to the row to increase the total number of boys to 30?

Answer 1

Answer:

oliver is 10th from right so there are 9 boys standing right side of him

from left he is at 15th so there are 14 boys standing left side of him

14 + 9 +1( himself ) +x = 30

24+x=30

x=30-24

x=6

so ,there should be 6 boys added to increase the row to 30

Answer 2

Given : in a row of boys. Oliver is standing 10th from the right and 15th from the left.

To find : How many more boys should be added to the row to increase the total number of boys to  30

Solution:

Oliver is standing 10th from the right

Hence 9 boys are in right of Oliver

Oliver is standing 15th from the left.

means 14 boys are in left of oliver

--------14------------OLIVER -----------9------------

Total Boys = 14 + Oliver + 9

= 24

Let say x boys to be increased to have 30 boys

24 + x = 30

=> x = 6

6 boys to be added to increase the total number of boys to 30

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