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A sum of rs1400 is to be used to give seven cash prizes to students if each prize is rs40 less than the preceding price find the value of each prize |
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Answer» Step-by-step EXPLANATION: it will FORM an A.P using SUM formula s=n/2(2A+(n-1)×d) 1400=7/2(2a+(7-1)×40) 1400×2/7=(2a+240) 400-240=2a a=80 the value of each prise is 80,120,160,200,240,280,320 |
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