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1 March, 06:35

145 300 610 1230

In the above sequence every term after the first is formed by multiplying by x and then adding y, where x and y are positive integers. What is the value of x + y?

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  1. 1 March, 09:31
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    Multiplying by 2 and then adding 10 145*2=290+10=300

    300*2=600+10=610

    610*2=1220 + 10=1230

    x=2 y=10

    x+y=12
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