Consumer Arithmetic

Calculate the value of P

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Answer explanation

P = 130.50 / 5

    = $26.10

Calculate the value of Q

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Answer explanation

Q = 14 * 44.35

        = $620.90

An adult ticket is twice the cost of a child ticket. Calculate the value of R

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Answer explanation

Adult ticket = 44.35*2

= 88.70

                R = 2483.60/88.70

                   = 28

The bus company pays taxes of 15% on each ticket sold. Calculate the taxes paid by the bus company

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Answer explanation

total cost of tickets sold = 130.50+620.90+2483.60

                                                     = $3235.00

Tax = 0.15 * 3235

        = $485.25

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Answer explanation

Plan A = 400 +65*12

             =1,180

Which is the better buy plan A or plan B? Justify your answer.

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Answer explanation

Plan B installments with tax= 80+80*.05 (or 80*1.05) =$84

Plan B = 600+ 84*6

             =1,104

 

Plan B is cheaper than Plan A.

Calculate the total amount that John Pays for electricity consumption for the month of March.

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Answer explanation

Electricity Consumption March

= 3307-3011

= 296

March Bill    

= 296 *5.1

= $1509.60

For the next month April, John pays $2351.10 for electrical consumption. Calculate his meter reading at the end of April.

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Answer explanation

Consumption April

= 2351.1 / 5.1

= 461

                               

Meter Reading

= 3307 +461

= 3768

Calculate the simple interest earned

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Answer explanation

Simple Interest

= 5810 -5000

=$810.0

The annual interest rate earned by the credit union

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Answer explanation

S.I                      = P R T/ 100

810                     =5000*R*3/100

81000                =15000R

R                        =81000/15000

R                        =5.4