CASELET DI Level 1 Test 2

In a huge Jewellery shop, the electric gadgets being used are 17
tubelights of 40 W each, 14 fans of 80 W each, 16 bulbs of 60 W each,
11 bulbs of 100 W each, 11 AC’s of 2100 W each, 9 laptops of 200 W
each and 10 TV’s of 120 W each. In a day, tube lights and TV’s are
used for 8 h but 60 W bulbs are used for 7 h and 100 W bulbs are used
for 9 h whereas laptops and AC's are used for 5 h and 9 h respectively.
However, fans are used for 11 h. (Note: 1000 W = 1 unit, 1 month = 30
days).

What is the total electric energy consumed (in units) by
60 W bulbs in the whole month?

In a huge Jewellery shop, the electric gadgets being used are 17
tubelights of 40 W each, 14 fans of 80 W each, 16 bulbs of 60 W each,
11 bulbs of 100 W each, 11 AC’s of 2100 W each, 9 laptops of 200 W
each and 10 TV’s of 120 W each. In a day, tube lights and TV’s are
used for 8 h but 60 W bulbs are used for 7 h and 100 W bulbs are used
for 9 h whereas laptops and AC's are used for 5 h and 9 h respectively.
However, fans are used for 11 h. (Note: 1000 W = 1 unit, 1 month = 30
days).

Electricity consumed by all fans is what per cent of energy
consumed by all the laptops?

In a huge Jewellery shop, the electric gadgets being used are 17
tubelights of 40 W each, 14 fans of 80 W each, 16 bulbs of 60 W each,
11 bulbs of 100 W each, 11 AC’s of 2100 W each, 9 laptops of 200 W
each and 10 TV’s of 120 W each. In a day, tube lights and TV’s are
used for 8 h but 60 W bulbs are used for 7 h and 100 W bulbs are used
for 9 h whereas laptops and AC's are used for 5 h and 9 h respectively.
However, fans are used for 11 h. (Note: 1000 W = 1 unit, 1 month = 30
days).

 Out of the following, which type of gadgets consume more
electricity in the shop?

In a huge Jewellery shop, the electric gadgets being used are 17
tubelights of 40 W each, 14 fans of 80 W each, 16 bulbs of 60 W each,
11 bulbs of 100 W each, 11 AC’s of 2100 W each, 9 laptops of 200 W
each and 10 TV’s of 120 W each. In a day, tube lights and TV’s are
used for 8 h but 60 W bulbs are used for 7 h and 100 W bulbs are used
for 9 h whereas laptops and AC's are used for 5 h and 9 h respectively.
However, fans are used for 11 h. (Note: 1000 W = 1 unit, 1 month = 30
days).

If one electric unit costs 2.70 and power (used by AC's)
unit costs 3.70, then what money is paid to the electricity
department for one month?

In a huge Jewellery shop, the electric gadgets being used are 17
tubelights of 40 W each, 14 fans of 80 W each, 16 bulbs of 60 W each,
11 bulbs of 100 W each, 11 AC’s of 2100 W each, 9 laptops of 200 W
each and 10 TV’s of 120 W each. In a day, tube lights and TV’s are
used for 8 h but 60 W bulbs are used for 7 h and 100 W bulbs are used
for 9 h whereas laptops and AC's are used for 5 h and 9 h respectively.
However, fans are used for 11 h. (Note: 1000 W = 1 unit, 1 month = 30
days).

What is the ratio of consumption of electricity in units by
60W and 100 W bulbs in a month?