Question
If the annual rate of simple interest increases from 10% to 12$1/2$% , a man's yearly income increases by Rs.1250. His principal (in rupees) is
Answer: Option B
Answer: (b)Using Rule 1,Change in SI= $(25/2 - 10)% = 5/2%$$5/2$% of principal = Rs.1250Principal = Rs.${1250 × 2 × 100}/5$ = Rs.50000
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Answer: (b)Using Rule 1,Change in SI= $(25/2 - 10)% = 5/2%$$5/2$% of principal = Rs.1250Principal = Rs.${1250 × 2 × 100}/5$ = Rs.50000
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