Question
Find the simple interest and the amount on Rs 4000 at 9%
per annum for 4 years.Solution
Principal P = 4000 Rate R = 9% Time T = 4 years Simple Interest (SI) = (P × R × T) / 100 = (4000 × 9 × 4) / 100 = 4000 × 36 / 100 = 40 × 36 = 1440 Amount = Principal + Interest = 4000 + 1440 = 5440 Answers: Simple Interest = Rs 1440 Amount = Rs 5440
127 470 254 ? 315 342
...203, 223, 198, 218, ?, 213
1400      350       700       175        ?       87.5
...24Â Â Â 25Â Â Â Â 34Â Â Â Â 59Â Â Â 108Â Â Â ?
2, 12, 90, 240, ?, 1260
342Â Â Â 252Â Â Â 172Â Â Â 102Â Â Â 42Â Â Â ?
18 113 559 2247 6721 13451
...5 29 ? 569 1703 3401
...28         57           172           689          ?              20677
...If 4   x     4           7          15        38.5
Then,  ( x + 1) ( x - 1) = ?
...
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