A house is fitted with 5 lamps of 60 watts, 6 lamps of 100 watts. if each lamp burns for 10 hours a day

Answers (1)
S safeer

5 lamps of 60-watt burns for 10 hours. implies total KWh (units consumed) is

=\frac{5\times60\times10}{1000}KWh=3KWh

6 lamps of 100-watt burns for 10 hours. implies total KWh (units consumed) is

=\frac{6\times100\times10}{1000}KWh=6KWh

Total kWh consumed in a day = 6+3 = 9 KWh=9 units per day

For 30 days 270 units are consumed

1 rupee per unit, therefor for 270 units 270 rupees

Preparation Products

JEE Main Rank Booster 2021

This course will help student to be better prepared and study in the right direction for JEE Main..

₹ 13999/- ₹ 9999/-
Buy Now
Rank Booster NEET 2021

This course will help student to be better prepared and study in the right direction for NEET..

₹ 13999/- ₹ 9999/-
Buy Now
Knockout JEE Main April 2021 (Subscription)

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 4999/-
Buy Now
Knockout NEET May 2021

An exhaustive E-learning program for the complete preparation of NEET..

₹ 22999/- ₹ 14999/-
Buy Now
Knockout NEET May 2022

An exhaustive E-learning program for the complete preparation of NEET..

₹ 34999/- ₹ 24999/-
Buy Now
Exams
Articles
Questions