O70 per anmiunsumof money doubles itself in 10 years. Find the rate of

1.	O70 per anmiunsumof money doubles itself in 10 years. Find the rate of interest.
Answer» Let the principal be xTime = 10 yearsAmount after 10 years gets doubled So amount = 2x simple interest = amount - principalsimple interest = 2x - x = xRate per annum = SI × 100 / P × T= x × 100 / x × 10100x/ 10x = 10So rate per annum = 10%. Please hit a like if you find it useful

O70 per anmiunsumof money doubles itself in 10 years. Find the rate of interest.

Answer»

Let the principal be xTime = 10 yearsAmount after 10 years gets doubled So amount = 2x simple interest = amount - principalsimple interest = 2x - x = xRate per annum = SI × 100 / P × T= x × 100 / x × 10100x/ 10x = 10So rate per annum = 10%.

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O70 per anmiunsumof money doubles itself in 10 years. Find the rate of interest.

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