What is 47 in stones and lbs?

Do you mean 47 kilograms (kg) or 47 pounds (lb)?

If you mean 47 kilograms:

  • 47 kg = $47\times2.20462262=103.617263\text{ lb}$
  • Stones: $\lfloor103.617263/14\rfloor=7$ stones, remainder $103.617263-7\times14=5.617263\text{ lb}$
  • So 47 kg ≈ 7 st 5.6 lb (about 7 st 6 lb if rounded to the nearest pound).

If you mean 47 pounds:

  • $47\div14=3$ remainder $5$
  • So 47 lb = 3 st 5 lb.

Which one did you mean, and do you want pounds rounded?

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Researchers investigated the possible beneficial effect on heart health of drinking black tea and whether adding milk to tea reduces any possible benefit. Twenty-four volunteers were randomly assigned to one of three groups. Every day for a month, participants in group 1 drank two cups of hot black tea without milk, participants in group 2 drank two cups of hot black tea with milk, and participants in group 3 drank two cups of hot water but no tea. At the end of the month, the researchers measured the change in each of the participants’ heart health.