Total Interest = ₹ 378
Rate = 12%
\text { Time }=\frac{1}{12} \text { yrs }
\text { Principal }=\frac{\text { Interest } \times 100}{\text { Rate } \times \text { Time }} \\
=\text { ₹ } \frac{378 \times 100}{12 \times \frac{1}{12}}=\text { ₹ } 37800
\therefore He takes loan of ₹ 37800.