Question
A sum of money lent out at simple interest amount to Rs. 720 after 2 years and to Rs. 1020 after a further period of 5 years . The sum is :
Answer: Option B
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S.I. for 5 years = Rs. (1020 - 720) = Rs. 300.
S.I. for 2 years = Rs. `(300/5 xx 2)` = Rs. 120
`:.` principal = Rs. (720 - 120) = Rs. 600.
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