Ques:- 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.
Recent Answer : Added by Admin On 2020-05-17 12:01:21:
let t = total no of students.. then
students who passed one or both subjects,
n(e U h) = n(e) + n(h) – n(e intersection h)
=> t = 0.8t + 0.7t – 144
=> t = 1.5t – 144
students who failed both subjects is 10% i.e. 0.1t
=>t-n(e U h) = 0.1t,
=>t -(1.5t – 144) = 0.1t
=>t- 1.5t- 0.1t = -144
=> -0.6t = -144
=>t = 240
Ques:- A person was fined for exceeding the speed limit by 10mph. Another person was also fined for exceeding the speed limit by twice the same. If the second person was travelling at speed of 35mph . Find the speed limit ?
Recent Answer : Added by Admin On 2020-05-17 12:00:34:
let the speed limit be x.
speed by first rider S1 and 2nd rider be S2.
S1=x+10;
ans S2=x+2*10; and given S2=35.
solving we get x=15mph.
Ques:- There are 6 red shoes & 4 green shoes . If two of red shoes are drawn what is the probability of getting red shoes
Recent Answer : Added by nilu On 2021-10-08 16:31:44:
5/9
Ques:- Reason behind leaving the last job?
Ques:- From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is -.
Recent Answer : Added by Admin On 2022-09-29 19:02:13:
Explanation:
Let E1 be the event of drawing a red card.
Let E2 be the event of drawing a king .
P(E1 ∩ E2) = P(E1) . P(E2)
(As E1 and E2 are independent)
= 1/2 * 1/13 = 1/26
Ques:- 121 : 169 :: 361 : __
Recent Answer : Added by chereddynagirreddy On 2021-08-11 07:22:43:
441=21^2
Ques:- Can you give me a list of five things that make you nervous?
Recent Answer : Added by DK BOSS On 2021-07-30 16:30:06:
Traffic Jams
Public Speaking
What to Wear to a Party
Noises on an Airplane
Bees
Ques:- If you had enough money to retire right now, would you?
Recent Answer : Added by Kavitha G On 2023-06-08 11:06:40:
Money will give Luxury but not experience
Ques:- A rope of which a calf is tied is increased from 12 m to 23 m, how much additional grassy ground shall it graze?
Recent Answer : Added by anit On 2021-10-08 16:31:41:
1208.9
Ques:- A sum of Rs. 390 was divided among 450 boys and girls. Each girl gets 50 paise and each boy gets one rupee. How many girls are there among them?
A. 100
B. 110
C. 120
D. 130
Recent Answer : Added by Avinash Kumar On 2022-04-02 07:00:09:
120
Ques:- What is your education qualification?
Ques:- Tell me something your self?
Ques:- If a man stands in front of sun what is the first letter of the direction which is left to him:
Recent Answer : Added by Jay On 2022-08-14 16:42:07:
The answer is W. Since, the direction left to him, would be west.
Ques:- Evaluate the LCM of 455, 117, 338 .
Ques:- How do you judge people?
Recent Answer : Added by Rahul On 2023-07-11 15:11:54:
By their Ability to suck dick.
Ques:- 2435 ? 24 = 24?
A. 2.5
B. 3.5
C. 2
D. 3
E. None of these
Recent Answer : Added by NITISH KUMAR On 2021-08-11 07:22:47:
but how?
Ques:- Which city is three fifth of China, two sixth of Canada and two third of Goa ?
Recent Answer : Added by Sofia On 2021-11-18 17:15:50:
Chi-ca-go
Ques:- Rs. 800 becomes Rs. 956 in 3 years at a rate of S.I. If the rate of interest is increased by 4%, what amount will Rs. 800 become in 3 years?
Recent Answer : Added by Sanketsinh Rathod On 2021-10-22 09:13:12:
1052
Ques:- Can you describe for me one or two of your most important accomplishments?
Ques:- Pipe A can fill in 20 minutes and Pipe B in 30 minsand Pipe C canempty the same in 40 mins.If all of them worktogether, find the timetaken to fill the tank
Ques:- Two trains are moving in the same directions at 65 km/hr and 45 km/hr. The faster train crosses a man in slower train in 18 seconds. The length of the faster train is
A. 100 m
B. 120 m
C. 145 m
D. 180 m
Recent Answer : Added by Prashanth On 2022-11-10 16:31:44:
Relative speed =65-45km/hr
Relative speed=20km/hr
Convert to m/s
S=20*5/18
S=5.555
Length of the faster train =5.55555*18seconds
=100meters
Ques:- X and Y together can do a piece of work in 8 days. If X alone can do the same work in 12 days, then Y alone can do the same work in?
Recent Answer : Added by Kanon Kamronnaher On 2022-08-14 16:36:02:
24 days
Ques:- Why do you think you will be suitable for this job?
Ques:- Do you prefer to be right or to be liked?
Ques:- What are the steps that you will take for the development of the company?
Ques:- HCF and LCM two numbers are 12 and 396 respectively. If one of the numbers is 36, then evaluate the other number ?
Recent Answer : Added by abhishek On 2022-01-16 17:19:24:
132
Ques:- What do you know about us or our company?
Ques:- A sum of money becomes triple itself in 5 years at simple interest. How many years will it become six times at the same rate?
Recent Answer : Added by MAMIDI LIJITA SREE On 2023-01-21 17:36:27:
12.5
Ques:- What role do you tend to take in a company?
let t = total no of students.. then
students who passed one or both subjects,
n(e U h) = n(e) + n(h) – n(e intersection h)
=> t = 0.8t + 0.7t – 144
=> t = 1.5t – 144
students who failed both subjects is 10% i.e. 0.1t
=>t-n(e U h) = 0.1t,
=>t -(1.5t – 144) = 0.1t
=>t- 1.5t- 0.1t = -144
=> -0.6t = -144
=>t = 240