state gov Bihar Vidhan Parishad Assistant & DEO Mock Test 2023 Quantitative Aptitude Ratio and Proportion
यदि a ∶ b = 3 ∶ 2, b ∶ c = 5 ∶ 7 और d ∶ c = 3 ∶ 4 है। तब a ∶ b ∶ c ∶ d का मान ज्ञात कीजिए।
1
17 ∶ 20 ∶ 28 ∶ 13
2
28 ∶ 20 ∶ 22 ∶ 21
3
30 ∶ 20 ∶ 28 ∶ 21
4
30 ∶ 25 ∶ 28 ∶ 27