a = 2b = 3c এবং abc = 36 হলে, c এর মান –
Solution
Correct Answer: Option D
দেওয়া আছে,
a = 2b = 3c এবং abc = 36
সুতরাং a = 2b, 2b = 3c এবং a = 3c
এখন, abc = 36
বা, 2b × b × c = 36
বা, 2 × 2b2 × c = 2 × 36
বা, (2b)2 × c = 72
বা, (3c)2 × c = 72
বা, 9c3 = 72
বা, c3 = 72/9
বা, c3 = 8
বা, c3 = 23
∴ c = 2
a = 2b = 3c এবং abc = 36
সুতরাং a = 2b, 2b = 3c এবং a = 3c
এখন, abc = 36
বা, 2b × b × c = 36
বা, 2 × 2b2 × c = 2 × 36
বা, (2b)2 × c = 72
বা, (3c)2 × c = 72
বা, 9c3 = 72
বা, c3 = 72/9
বা, c3 = 8
বা, c3 = 23
∴ c = 2
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