What s de answer for this question : Three independent
mechanisms A, B and C have been incorporated for power
saving in a plant producing respectively 30%, 40% and 10%
efficiency. Assuming that they operate independently, what
is the net power efficiency achieved.
(a) 62.2% (b) 68% (c) 61% (d) 64% (e) 56%
Answer Posted / uday
check out dis
30%,40%,10% of the whole power supply is saved when done individually.
so when combined together we get the following expression
.3+.4(1-.3)+.1(1-.4)(1-.3)
=.622
that is 62.6%
| Is This Answer Correct ? | 11 Yes | 3 No |
Post New Answer View All Answers
wind flows 160 miles in 330 min, for 80 miles how much time required.
Find the next series: SE QU EN TI ?
USA + USSR = PEACE ; P + E + A + C + E = ?
When I was married 10 years back my wife was the sixth member of my family. Now I have a baby. Today my father was dead and I had a new baby. Now the average age of my family is the same as that when I was married. Find the age of my father when he was 60.
there are 76 persons. 53 can read hindu,46 can read times,39 can read deccan and 15 can read all.if 22 can read hindu and deccan and 23 can read deccan and times then what is the number of persons who read only times and hindu………
A can work three times as B can work. If A takes 60 days less than B to complete the same task, calculate the number of days when both A and B start working together on the same day.
Mr. Jaweri decided to walk down the escalator on the station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured from the moment the top step begins to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?
One dollar is saved in one month. Then how much dollar is saved in one day?
In how many rows will 200 Miranda bottles be placed, if 200 Miranda bottles are stacked in such a way that there are 20 bottles in the bottom, 19 in the next row, 18 in the row next and so on?
the difference b/w the compound interest payble half yearly and the simple interest on a certain sum cont out at 10% p.a for 1 year is Rs 25 what is the sum
one fast typist type some matter in 2hr and another slow typist type the same matter in 3hr. if both do combinely in how much time they will finish.
Which of the following fractions is less than 1/3
If the total distance of a journey is 120 km .If one goes by 60 kmph and comes back at 40kmph what is the average speed during the journey?
A man travelled from the village to the post-office at the rate of 25 kmph and walked back at the rate of 4 kmph. If the whole journey took 5 hours 48 minutes, find the distance of the post-office from the village
The base 5 representation of the decimal number 2048 is _____.