Ques:- The average mark of the students of a class in a particular exam is 80. If 5 students whose average mark in that exam is 40 are excluded, the average mark of the remaining will be 90. Find the number of students who wrote the exam?
Recent Answer : Added by Angel Maluleka On 2022-05-17 09:07:28:
-Total /n=80
– x/5=40
x=200
Total/n=y/n
y-x/n-5=90
80n-200=90(n-5)
80n-200=90n-450
450-200=10n
n =25 (students) write exam
Ques:- What would you say is your biggest fault?
Ques:- Regarding Last job’s experience
Ques:- Two trains are on same track and they are coming toward each other. The speed of first train is 50 KMs/h and the speed of second train is 70 KMs/h. A bee starts flying between the trains when the distance between two trains is 100 KMs. The bee first flies from first train to second train. Once it reaches the second train, it flies back to the second train ? and so on until trains collide. Calculate the total distance traveled by the bee. Speed of bee is 40 KMs/h. .
Recent Answer : Added by DK BOSS On 2021-07-15 09:17:12:
Answer: 66.67 km approx.
Solution:
Let the first train A move at u km/h.
Let the second train B move at v km/h.
Let the distance between two trains be d km
Let the speed of bee be b km/h
Therefore, the time taken by trains to collide = d/(u+v)
Now putting all the known values into the above equation, we get,
u = 50 km/hr
v = 70 km/hr
d = 100 km
b = 80 km/hr
Therfore, the total distance travelled by bee
= b*d/(u+v)
= 80 * 100/(50+70)
= 66.67 km (approx)
Ques:- A simple interest amount of rs 5000 for six month is rs 200. what is the anual rate of interest?a) 10%b) 6% c) 8%d) 9%
Recent Answer : Added by RAJASREE On 2022-08-14 16:28:24:
SI = PTR / 100
Ques:- Have you ever had to fire anyone? How did you feel about that?
Ques:- Wat is ergonomics?
Ques:- Ten years ago, the age of Anand was one-third the age of Bala at that time. The present age of Bala is 12 years more than the present age of Anand. Find the present age of Anand?
Recent Answer : Added by narendra On 2021-12-25 15:45:35:
let present age of ANAND AND BALA BE( A AND B ) RESPECTIVELY
A.T.Q
(A-10) = 1/3[B-10]. ……… – {1}
given
B = A+ 12 PUTTING IN 1
THEREFORE A-10 = 1/3 (A+2) = A+2 = 3A – 30
2A =32
A=16
Ques:- About yourself and project related.
Ques:- Ram professes to sell his goods at the cost price but he made use of 900 grms instead of a kg, what is the gain percent?
Recent Answer : Added by DK BOSS On 2021-07-17 06:19:14:
Answer: C
Explanation:
900 — 100
100 — ? => 100/900*100 => 11.11%
Ques:- In a can, there is a mixture of milk and water in the ratio 4 : 5. If it is filled with an additional 8 litres of milk the can would be full and ratio of milk and water would become 6 : 5. Find the capacity of the can?
Recent Answer : Added by N DHANAVEENA On 2021-10-19 17:55:00:
Ans-44
4x+8=6Y
5X=5Y
X=Y
FROM EQ 1
2X=8
X=4
6Y+5Y=11*4=44
Ques:- The ratio between the present ages of A and B is 5:7 respectively. If the difference between B’s present age and A’s age after 6 years is 2. What is the total of A’s and B’s present ages?
Ques:- Are u ready to travel any where in India? Are u comfortable with other country or state culture & foods?
Ques:- what does success mean to you?
Ques:- 3 cubes of metal whose edges are 9, 12 and 15 cm respectively, are melted and one new cube is made. Find the edge of the new cube?
Recent Answer : Added by Anna On 2021-10-22 09:13:17:
let a = 9 * 9 * 9;
let b = 12 * 12 * 12;
let c = 15 * 15 * 15;
sum = a + b + c;
edge = Math.cbrt(sum);
console.log(edge);
Ques:- What skills and qualifications do you bring to this position
Ques:- Why you are important to us?
Ques:- Solve the puzzles and riddles.
Ques:- About my self, regarding customer service.
Ques:- Ramesh can finish a work in 20 days and Sushil in 25 days. They both work together for 5 days and then Sushil goes away. In how many days will Ramesh complete the remaining work?
Recent Answer : Added by DK BOSS On 2021-07-17 10:05:29:
Answer:
11 days.
Step-by-step explanation:
In the question,
Time taken by Ramesh to finish a piece of work = 20 days
Time taken by Sushil to finish a work = 25 days
Time for which they worked together = 5 days
Sushil left after = 5 days
So,
One day work of Ramesh is,
One day work of Sushil is,
So,
Work done in 5 days is given by,
Therefore, Remaining work is given by,
Now, as the Sushil left the remaining work was done by Ramesh,
Time taken by Ramesh for the remaining work is,
Therefore, the remaining work will be completed in 11 days by Ramesh.
Ques:- Is the six digit number 1x2y75 a perfect square?
Ques:- If a 200 m long train crosses a platform of the same length as that of the train in 20 seconds, then the speed of the train is
A. 50 km/hr
B. 60 km/hr
C. 70 km/hr
D. 72 km/hr
Recent Answer : Added by Dhiya On 2023-05-31 17:27:59:
3600 sec in 1 hr.. 1000 M in 1 km so to covert m/s to km /hr you multiply the value with (3000/1000) .. so 3000 divided by 1000 will give you 18/5 it’s like constant value.. to convert m/s to km/ hr we can use this 18/5.. hope you understand
Ques:- Introduce yourself and share your professional journey so far?
Ques:- Personal background & qualification.
Ques:- Imagine you are standing in front of a mirror, facing it. Raise your left hand. Raise your right hand. Look at your reflection. When you raise your left hand your reflection raises what appears to be his right hand. But when you tilt your head up, your reflection does too, and does not appear to tilt his/her head down. Why is it that the mirror appears to reverse left and right, but not up and down?
Recent Answer : Added by Admin On 2020-05-17 12:01:39:
The definition of left and right depends on the observer and
is reversed when facing the opposite direction. The
definition of up and down does not depend on the orientation
of the observer.
Ques:- what is the angle between teo hands of a clock when time is 8-30?
Recent Answer : Added by Admin On 2020-05-17 12:00:00:
75 degrees
30h – 11/2 m = 240 – 165 = 75 ..
Ques:- 280% of 3940 = ?
A. 10132
B. 11032
C. 11230
D. 11320
Recent Answer : Added by jaya aishu On 2022-05-17 09:07:18:
Ques:- On your first day at Google, you discover that your cubicle mate wrote the textbook you used as a primary resource in your first year of graduate school.What would you do?
Ques:- The wheels revolve round a common horizontal axis. They make 15, 20 and 48 revolutions in a minute respectively. Starting with a certain point on the circumference down wards. After what interval of time will they come together in the same position?
Ques:- Give a brief description of your carrer goals
-Total /n=80
– x/5=40
x=200
Total/n=y/n
y-x/n-5=90
80n-200=90(n-5)
80n-200=90n-450
450-200=10n
n =25 (students) write exam