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Option 1 : Rs. 12,900
Given:
Rishabh borrowed a certain sum from Anita at a certain rate of simple interest for 2 years.
Formula used:
C.I = P ×
S.I = (P x R x T)/100
Calculation:
Hence S.I. = 8000
⇒ (P × R × T) /100 = 8000
⇒ (P × 10 × 2) /100 = 8000
⇒ P = 4,00,00
New rate = 50% more than 10 = 150/100 × 10 = 15%
Now,
C.I = P ×
⇒ C.I = 40000 ×
⇒ C.I = 40000 ×
⇒ C.I = 40000 ×
⇒ C.I = 40000 × 129/400
∴ C.I = Rs. 12,900
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