Q:

लॉन टेनिस में प्रयुक्त गेंद का वजन होता है ?

• 1
  24 grams to 35 grams
• 2
  2.40 g to 2.53
• 3
  36.5 grams to 52.9 grams
• 4
  56.7 grams to 58.5 grams