Question

If in amits house 4 bulbs of each work for 4 hours a day. A freeze of 2000W work for 10 hours a day and an A.C of 5000W work for 4 hours a day. Then, find the monthly bill of October? Cost of 1 unit of energy is 10 rupees.

Answer 1

in ur question the rate of bulb is note given so cannot calculate it.

a freezer of 2000W = 2KW
an A.C of 5000W. = 5KW
( 1 unit = 1 KW)

the freezer works for 10 hours a day, so
2 × 10 = 20 KWH


the A.C works for 4 hours a day, so
5 × 4 = 20 KWH


total is 40 KWH


in october the is 31 days, so
40 × 31 = 1240 KW


1 unit cost rupees 10, so
1240 × 10 = 12400 rupees