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8) Shriya deposited Rs.10,000/- in S.B.I. After 2 years, shegot an amount Rs.10,800/-.She deposited Rs. 12,000/- in other bank for the same periodand got an amountRs. 12,840/-Which deposit is more beneficial? Give reasons? |
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Answer» Answer: SBI deposit is more beneficial. Step-by-step explanation: Let us assume that the interest RATE in SBI is r% per YEAR SIMPLE interest. And the interest rate in the other bank is R% per yeas simple interest. Now, by the given condition 10000 Rs becomes 10800 Rs, in SBI within 2 years. Hence, 10800=10000[1+(2r/100)] ⇒1+(2r/100)=1.08 ⇒2r/100=0.08 ⇒ r= 4% Again, in the other bank 12000 Rs becomes 12840 Rs. within 2 years. Hence, 12840=12000[1+(2R/100)] ⇒1+ (2R/100)=1.07 ⇒ 2R/100 =0.07 ⇒ R=3.5% Since, r > R Therefore, the SBI deposit is more beneficial. (Answer) |
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