Mathematics · Ratio and Proportion
यदि a : b = 5 : 1 है, तो (3a + 4b) : (3a - 4b) का मान क्या है?
- 111 : 12
- 214 : 11
- 313 : 21
- 419 : 11✓
सही उत्तर देखें
19 : 11
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