Question : $\frac{2}{7}$ of $40$% of B = 48. What is the value of B?
Option 1: 400
Option 2: 380
Option 3: 360
Option 4: 420
Correct Answer: 420
Solution :
$\frac{2}{7}$ of $40$% of B = 48
⇒ $\frac{2}{7} × \frac{40}{100}$ × B = 48
⇒ B = $\frac{48×7×100}{2×40}$ = 420
Hence, the correct answer is 420.
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