railway RRB JE (CBT I + CBT II) Mock Test 2024 Quantitative Aptitude Ratio and Proportion Compound Ratios

  যদি a : (b + c) = 1 : 3 এবং c : (a + b) = 5 : 7, b : (c + a) এর মান নির্ণয় করো

1
 1 : 2
2
 3 : 4
3
 4 : 5
4
 3 : 5
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