Triangle is formed by the coordinates (0, 0), (0, 22) and (22, 0). The number of integral coordinates strictly inside triangle (integral coordinates has both x and y as integers)
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a
200
b
210
c
110
d
220
answer is B.
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Detailed Solution
Equation of AB is x+y=22, Number of integral solutions of x + y < 22 is 21×202
Triangle is formed by the coordinates (0, 0), (0, 22) and (22, 0). The number of integral coordinates strictly inside triangle (integral coordinates has both x and y as integers)