Before proceeding to the solution of examples and problems be sure to read the theoretical part of the lesson
Electricity, gas and water
1. Nerys has received his electricity bill:
present reading
= 53164
previous reading – 51083
cost of one unit
of electricity = 9.3 p.
Copy and
complete the bill below:
units used =
present – previous =
b) £203.21;
c) £201.21;
d) £203.41.
2. Work out the cost of each electricity bill
below. VAT is payable at 5%
each time.
present reading
= 81659
previous reading
= 80292
cost of one unit
of electricity = 8.3 p
а) £122.13;
b) £115.13;
b) £115.13;
c) £119.13;
d) £119.19.
d) £119.19.
3. Work out the cost of each electricity bill
below. VAT is payable at 5%
each time.
present reading
= 23748
previous reading
= 22095
cost of one unit
of electricity = 7.6 p
а) £131.91;
b) £129.91;
b) £129.91;
c) £135.91;
d) £131.97.
d) £131.97.
4. Work out the cost of each electricity bill
below. VAT is payable at 5%
each time.
present reading
= 5186
previous reading
= 4417
cost of one unit
of electricity = 7.6 p
а) £57.37;
b) £65.37;
b) £65.37;
c) £61.31;
d) £61.37.
d) £61.37.
5. Work out the cost of each electricity bill
below. VAT is payable at 5%
each time.
present reading
= 63746
previous reading
= 62640
cost of one unit
of electricity = 9.4 p
а) £111.16;
b) £109.16;
b) £109.16;
c) £105.16;
d) £109.22.
d) £109.22.
6. Work out the cost of each electricity bill below. VAT
is payable at 5% each time.
present reading
= 9187
previous reading
= 8089
cost of one unit
of electricity = 8.2 p
а) £96.54;
b) £92.54;
b) £92.54;
c) £94.58;
d) £94.54.
d) £94.54.
7. Work out the cost of each electricity bill below. VAT
is payable at 5% each time.
present reading
= 5613
previous reading
= 4688
cost of one unit
of electricity = 11.4 p
а) £110.72;
b) £108.72;
b) £108.72;
c) £112.72;
d) £110.78.
d) £110.78.
8. Work out the cost of each electricity bill
below. VAT is payable at 5%
each time.
present reading
= 71248
previous reading
= 69325
cost of one unit
of electricity = 7.9 p
а) £156.51;
b) £162.51;
b) £162.51;
c) £159.51;
d) £159.55.
d) £159.55.
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