In a class 80% have passed english,70% passed Hindi 10%
didnot passed either. If 144 students passed both. What is
the total strength of the class.
Answer Posted / aprameya shyam
let t = total no of students.. then
(e U h) = n(e) + n(h) - n(e intersection h)
=> t = 8t/10 + 7t/10 - 144
=> t = 288 students
| Is This Answer Correct ? | 10 Yes | 41 No |
Post New Answer View All Answers
There are 19 red balls and one black ball . Ten balls are put in one jar and the remaining 10 are put in another jar. what is the possibility that the black is in the right jar.
2 persons are doing part time job in a company(say a and b). THe company is open for all the 7 days of the week.'A' works every second day.'B' works every 3rd day.If 'A'works on 1st june and 'B' works on 2nd june.Find out the date on which both 'A' and 'B' will work together.
Four friends are given named Akansha, Anuska, Anisha, ... , ... Each of them live in a separate home and sleep on one bed. Akansha and Anuska have two extra beds, two of the house have green lawns while the rest have narrow porchs, One of the house has Airconditioner while the rest have fans
How many 1's are there in the binary form of 8*1024 + 3*64 + 3
The ratio between two numbers is 5:7 and their product is 560. What is the difference between these two numbers?
G(0)=-1, G(1)=1, G(N)=G(N-1) - G(N-2), G(5)= ?
Only boys aged 16 wear coats. Boys aged 15 go to watch football.some more statements are given. What can be said about those who are watching football ? (age and costume).
In a class total 34 students, 16 are have a brother, 15 are have sisters, 9 students don't have either brothers or sisters.Find the number of students having both brother and sisters.
One passage was on playing cards. know how many diamonds and etc.
JSW steel online test questions
THERE ARE 3 MIXTURES WHEN MIXED IN THE RATIO OF 3:4:5 PRICE WAS 240.WHEN MIXED WITH 6:4:9 PRICE WAS 340.WHAT'S THE PRICE WHEN MIXED IN 5:6:8 RATION PRICE IS
If a car starts from A towards B with some velocity due to some problem in the engine after travelling 30km.If the car goes with 4/5 th of its actuval velocity the car reaches B 45min later to the actual time. If the car engine fails ofter travelling 45km, the car reaches the destination B 36min late to the actual time , what is the initial velocity of car and what is the distance between A and B in km ans) 20 &
Some work is done by two people in 24 minutes. One of them can do this work alone in 40 minutes. How much time does the second person take to do the same work ?
One ball was dropped from 8ft height and every time it goes half of the height. How much distance it will travell before coming to rest.
What is the average candidates who appeared from state q during the given years?