state gov Kolkata Police Constable Mock Test 2024 Quantitative Aptitude Ratio and Proportion

यदि a ∶ b = 2 ∶ 3 है, तो (b2 + 2a2) ∶ (b2 - 2a2) का मान क्या है?

1
17 ∶ 1
2
20 ∶ 11
3
18 ∶ 1
4
15 ∶ 2
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