A manufacturer of fridges produced 600 units in the third year and 700 units in the seventh year. assuming that the production increases uniformly by a fixed number every year, the total production in 7 years will be
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Difference in 4th yr: 100
:. increase in 4yr: 100÷4=25
Prod:430+575+600+625+650+675+700
=4155
Total production is 4155
:. increase in 4yr: 100÷4=25
Prod:430+575+600+625+650+675+700
=4155
Total production is 4155
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