SSC SSC MTS & Havaldar Mock Test Series 2024 Quantitative Aptitude Ratio and Proportion Mean Proportional

যদি a ∶ b = 2 ∶ 7 এবং a ও b-এর তৃতীয় সমানুপাতিক 343 হয়, তাহলে b - a-এর মান হল: 

1
98
2
70
3
49
4
126
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