Question 28

An electric lamp of 100 W is used for 5 hours per day. How much energy will be consumed by the lamp in 3 days?

Solution

Energy consumed = Power x total time

Here, power = 100 W and time = 5 hours x 3 = 15 hours

Energy consumed = 100 x 15 = 1500 kW h or 1.5 units

Hence, option A is the correct answer.

Create a FREE account and get:

Download RRB Study Material PDF
45+ RRB previous papers with solutions PDF
300+ Online RRB Tests for Free

CAT Quant Questions | CAT Quantitative Ability

CAT Number Series Questions CAT Quadratic Equations Questions CAT Averages Questions CAT Data Sufficiency Questions CAT Functions, Graphs and Statistics Questions

CAT DILR Questions | LRDI Questions For CAT

CAT Data change over a period Questions CAT Table with Missing values Questions CAT Charts Questions CAT Maxima-Minima Questions CAT Miscellaneous LR Questions

CAT Verbal Ability Questions | VARC Questions For CAT

CAT Reading Comprehension Questions CAT Para Summary Questions CAT Grammar and Sentence Correction Questions CAT Para Jumbles Questions CAT Vocabulary Questions

Follow us on

Boost your Prep!

Download App