engineering recuitment FSSAI Assistant Mock Test 2021 Quantitative Aptitude Ratio and Proportion Mean Proportional
The mean proportional between 18 and 8 is A and the fourth proportional of 3, 2 and 15 is B. What is A ∶ B?
1
1 ∶ 2
2
3 ∶ 4
3
6 ∶ 5
4
4 ∶ 5