Option (d) is correct

Amount in 2 Years = 10000

Amount in 3 Years = 11000

So, we can say that 1000 ₹ simple interest in one years. Since it is simple interest which is equal every year.

So interest for two years = 1000 x 2 = 2000

Hence principal = 10000-2000 = 8000

Now

SI = (P x r x t)/100

2000 = (8000 x r x 2)/100

r = 12.5%

Option (d) is correct

Amount in 2 Years = 10000

Amount in 3 Years = 11000

So, we can say that 1000 ₹ simple interest in one years. Since it is simple interest which is equal every year.

So interest for two years = 1000 x 2 = 2000

Hence principal = 10000-2000 = 8000

Now

SI = (P x r x t)/100

2000 = (8000 x r x 2)/100

r = 12.5%

विकल्प (d) सही है

2 वर्षों में राशि = 10000

3 वर्षों में राशि = 11000

तो, हम कह सकते हैं कि एक वर्ष में साधारण ब्याज 1000 ₹ हो जाता है। चूंकि यह साधारण ब्याज है जो हर साल बराबर होता है।

अतः

दो वर्षों के लिए ब्याज = 1000 x 2 = 2000

अतः मूलधन राशि = 10000 - 2000 = 8000

अब,

SI = (P x r x t)/100

2000 = (8000 x r x 2)/100

Video Explanation

वीडियो व्याख्या