state gov WBPSC Miscellaneous Services Mock Test 2023 Quantitative Aptitude Algebra Identities

যদি (a - 2b) = 8 এবং 2ab = 9 হয়, তাহলে (a + 2b) এর মান নির্ণয় করুন।

1
6
2
8
3
10
4
12
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