Question

the lcm and hcf of two number is 210and 5.find the possible no. of pairs​

Answer 1

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Answer 2

Answer:

10 pairs

Step-by-step explanation:

let tthe two numbers are x and y

xy=210 ×5 (lcm×hcf= product of two numbers)

xy=(3×7×2×5)×5

pairs are:

(42,25),(21,50),(30,35),(6,175),(75,14),(15,70),(210,5),(7,150),(2,525),(10,210)