30
In a row of twenty-five children facing South R is sixteenth from the right end and B is eighteenth from the left end. How many children are there between R and B?
- A2
- B3
- C4
- DData inadequate
Answer not set
Discussion 1
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CCommunity
Solution
Total number of children in the row = 25
Position of R from right end = 16th
Position of B from left end = 18th
=> Position of B from right end = (25 - 18) + 1 = 8th
$\therefore$ Number of children between R and B = (16 - 8) - 1 = 7
=> Ans - (E)
Total number of children in the row = 25
Position of R from right end = 16th
Position of B from left end = 18th
=> Position of B from right end = (25 - 18) + 1 = 8th
$\therefore$ Number of children between R and B = (16 - 8) - 1 = 7
=> Ans - (E)