Difficulty: Medium
Correct Answer: Rs. 240
Explanation:
Given data
Concept / Approach
Step-by-step calculation
Sum = (2/3)B + B + 4B = (2/3 + 5)B = (17/3)B.(17/3)B = 1360 ⇒ B = 1360 × 3 / 17 = 80 × 3 = Rs. 240.
Verification
A = (2/3)×240 = 160; C = 4×240 = 960; total = 160 + 240 + 960 = 1360 ✔.
Common pitfalls
Final Answer
Rs. 240.
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