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Q: The ratio of two numbers is 4 : 5 and their sum is equal to 72. If each of them increased by 8, then what will be the ratio of these new numbers?
  • A. 5 : 6
  • B. 7 : 8
  • C. 6 : 7
  • D. 4 : 5
Correct Answer: Option A - माना संख्याएँ हैं = 4x, 5x प्रश्नानुसार, 4x + 5x = 72 9x = 72 x = 8 नई संख्या का अनुपात = (4x + 8) : (5x + 8) = (32 + 8) : (40 + 8) = 40 : 48 = 5 : 6
A. माना संख्याएँ हैं = 4x, 5x प्रश्नानुसार, 4x + 5x = 72 9x = 72 x = 8 नई संख्या का अनुपात = (4x + 8) : (5x + 8) = (32 + 8) : (40 + 8) = 40 : 48 = 5 : 6

Explanations:

माना संख्याएँ हैं = 4x, 5x प्रश्नानुसार, 4x + 5x = 72 9x = 72 x = 8 नई संख्या का अनुपात = (4x + 8) : (5x + 8) = (32 + 8) : (40 + 8) = 40 : 48 = 5 : 6