Answer:
= 7700
Step-by-step explanation:
income : savings = 15 : 4
income = 15x
savings = 4x
but it is given that savings = 2800
therefore
4x = 2800
x = 700
income = 15x
= 15*700
= 10500
expenditure = income - savings
= 10500-2800
= 7700
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