Question:
A sum amounts to ₹9,600 in 3 yrs and ₹11,200 in 5 yrs at SI. Find Principal and Rate.
(a) Principal = ₹7,200, Rate = 11.11%
(b) Principal = ₹7,200, Rate = 10%
(c) Principal = ₹7,500, Rate = 8%
(d) Principal = ₹8,000, Rate = 9%
(e) Principal = ₹7,000, Rate = 12%
कोई राशि साधारण ब्याज पर 3 वर्ष में ₹9,600 और 5 वर्ष में ₹11,200 हो जाती है। मूलधन और दर?
(a) मूलधन = ₹7,200, दर = 11.11%
(b) मूलधन = ₹7,200, दर = 10%
(c) मूलधन = ₹7,500, दर = 8%
(d) मूलधन = ₹8,000, दर = 9%
(e) मूलधन = ₹7,000, दर = 12%
Correct Answer: (a)
Explanation:
SI for 1 yr = ₹800. P = 9600 – 2400 = ₹7,200. Rate = (800/7200)*100 = 11.11%. Option (a).
मूलधन = ₹7,200, दर = 11.11%। विकल्प (a) सही है।