If A=\{(a, b): 4 a=5 b ; a, b \in\{1,2,3, . . . 30\}\}, then the number of such ordered pairs (a, b) is

AP EAPCET 17th May 2023 Shift 2 Solved Paper

Section: Mathematics

Question : 18 of 160

Marks: +1, -0

If A={(a,b):4a=5b;a,b∈{1,2,3,...30}}, then the number of such ordered pairs (a,b) is

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