Question

If a sum of money borrowed on simple interest for 10years doubles itself, then the rate percent is​

Answer 1

LET THE PRINCIPLE BE X

• TIME = 10 years
• Amount after 10 years gets doubled
• so amount =2x
• simple interest =amount -principle
• simple interest =2x-x=x
• Rate per annum=SI × 100/P ×T
• =>x ×100/x × 100
• =>100x/10x
• =>10

RATE PER ANNUM =10%

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