Multiple choice

When two bodies approach each other with the different speeds, the distance between them decreases by $120$$\mathrm { m }$ for every $1 \mathrm { min }$ . The speeds of the bodies are

  1. $2 \mathrm { m } / \mathrm { s }$ and $0.5 \mathrm { m } / \mathrm { s }$
  2. $3 \mathrm { m } / \mathrm { s }$ and $2 \mathrm { m } / \mathrm { s }$
  3. $1.75 \mathrm { m } / \mathrm { s }$ and $0.25 \mathrm { m } / \mathrm { s }$
  4. $2.5 \mathrm { m } / \mathrm { s }$ and $0.5 \mathrm { m } / \mathrm { s }$
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