What is the principal amount which earns Rs.132 as compound interest for the second year at 10% per annum ?
bRs.1200
A sum amounts to Rs.1352 in 2 years at 4% compound interest. The sum is:
bRs.1200
A sum amounts to Rs.1352 in 2 years at 4% compound interest. The sum is:
Solution:
Let x be the principal at the end of first year.
So interest on first year ending amount
= x×10×1100=132⇒x=1320x×10×1100=132⇒x=1320
Let y be the original principal. Then one year interest + principal = 1320
So, y + y×10×1100=1320⇒y=1200y×10×1100=1320⇒y=1200
Let x be the principal at the end of first year.
So interest on first year ending amount
= x×10×1100=132⇒x=1320x×10×1100=132⇒x=1320
Let y be the original principal. Then one year interest + principal = 1320
So, y + y×10×1100=1320⇒y=1200y×10×1100=1320⇒y=1200