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
Find the total number of squares in 1/4 of chess board ?
find R,M,(..),F,D,(..)
A man drives at a speed of 40 miles/hr while his friend drives at a speed of 50 miles/hr. If the friend leaves 30 minutes after the man, when are they going to meet?
If 13 = 13w/(1-w) ,then (2w)2 = ?
Find the correct meaning of the following phrase: Man of few words
500 men are arranged in an array of 10 rows and 50 columns . ALL tallest among each row aare asked to fall out . And the shortest among THEM is A. Similarly after resuming that to their originaal podsitions that the shorteest among each column are asked to fall out. And the longest among them is B . Now who is taller among A and B ?
Hi Guys. I am an Instrumentation and Control Engineer(ICE) and have filled various PSU entrance exam forms. I wanted to know if anyone of you out there had any material for the preparation of the same. Any sort of material will be greatly appreciated. Be it previous year questions (Aptitude, GK or Technical) , study material or links to websites which do have this material. PSUs that I am going to appear in are HPCL, SAIL, ECIL and finally Gate. Any suggestions and advice is greatly welcomed. My E-Mail ID is kris_sreekanth86@yahoo.co.in
A Farmer owns a square land of 15 m each side with a pole in one of the corners to which he tied his cow with a rope whose length is about 10 m. What is the area available for the cow to graze. (Assume pi = 3)
Sunny ate 100 apples in five days, each day eating 6 more than the previous day. How many apples did he eat on the first day?
What Is Kyc?
Find perimeter of a trapezium with 3 sides given and distance between parallel sides given.
There is a 4 inch cube painted on all sides. This is cut down into of 1 inch cubes. What is the no of cubes which have no pointed sides.
A batsman scored 120 runs including 16 fours and 2 sixes. What percentage of his total score did he make by running between the wickets?
I HAVE APPLIED FOR RRB-CHENNAI(ECRC,GOODS GUARD).SO I NEED ECRC ALL PREVIOUS YEAR QUESTION SOLVED PAPER..PLS SEND IT TO ramya.raj@hotmail.com
In a show, ticket numbers from 101 to 350 are made to sit consecutively. What is the probability that the number of the ticket, selected at random, will be a hundredth digit of 2?