alleryAn RD uses I=Pn(n+1)r/2400. With n fixed, r falls from 8 to 6. To keep I, P=₹900 must become
A₹675
B₹1,125
C₹1,800
D₹1,200
Answer & Solution
Correct answer: D. ₹1,200
Keeping Pr constant requires a monthly deposit of 900×8/6, or ₹1,200.
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