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:- (103.7 x 101.3)2 = 10?
Recent Answer : Added by Admin On 2020-05-17 12:03:27:
( c ) 10
Ques:- A, B, C hired a car for Rs.520 and used it for 7, 8 and 11 hours respectively. Hire charges paid by B were
A. Rs. 140
B. Rs. 150
C. Rs. 160
D. Rs. 180
Recent Answer : Added by Omodele On 2022-05-17 09:09:34:
A. Rs 140
7+8+11=26
B: 7/26*520= 140
Ques:- If the diagonals of a rhombus are 8 cm and 10 cm respectively what will be the area of the rhombus?
A. 35 sq cm
B. 40 sq cm
C. 30 sq cm
D. 20 sq cm
E. None of these
Recent Answer : Added by Admin On 2020-05-17 12:03:58:
( b ) 40 sq cm
Ques:- A train leaves Delhi at 9 a.m. at a speed of 30 kmph. Another train leaves at 2 p.m. at a speed of 40 kmph on the same day and in the same direction. How far from Delhi, will the two trains meet?
Recent Answer : Added by Alan On 2022-11-14 17:03:53:
At 680Km
Ques:- The greatest number of four digits that have 144 for their HCF is?
Recent Answer : Added by Ndono Stanley On 2022-03-09 16:40:01:
9936
Ques:- Are you willing to change your role and profile when required for a project?
Ques:- About Job need
Ques:- 10 in 4 seconds, ? in 6 minutes
Recent Answer : Added by Admin On 2020-05-17 12:02:26:
Ques:- Subtracting 30 from a number, the remainder is one fourth of the number. Find the number?
Recent Answer : Added by Jonáš On 2022-08-14 18:01:24:
40
x – 30 = 1/4 x || *4
4x – 120 = x || -x + 120
3x = 120 || /3
x = 40
Ques:- Consider a series in which 8 teams are participating. each team plays twice with all other teams. 4 of them will go to the semi final. How many matches should a team win, so that it will ensure that it will go to semi finals.?
Ques:- Why a select t his filed…………………………….,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Ques:- A lends Rs. 2500 to B and a certain to C at the same time at 7% p.a. simple interest. If after 4 years, A altogether receives Rs. 1120 as interest from B and C, then the sum lent to C is?
Recent Answer : Added by Nilesh Godle On 2021-07-23 15:26:04:
1500
Ques:- Two trains, one from Howrah to Patna and the other from Patna to Howrah, start simultaneously. After they meet, the trains reach their destinations after 9 hours and 16 hours respectively. The ratio of their speeds is?
Ques:- Simran started a software business by investing Rs. 50,000. After six months, Nanda joined her with a capital of Rs. 80,000. After 3 years, they earned a profit of Rs. 24,500. What was Simran’s share in the profit?
Ques:- 40.83 x 1.02 x 1.2 = ?
Recent Answer : Added by Gowtham On 2022-09-15 16:37:20:
There should be 5(2+2+1) decimal places in the answer and the decimal place should end with 2(3*2*2=12) so the correct answer is a, no need for calculator. You can rule out all the other options because it does not satisfy this condition.
Ques:- Total distance is 120 km . Going by 60kmph and coming back by 40kmph what is the average speed?
Recent Answer : Added by Sanjai Kumar On 2021-01-26 02:42:30:
Ques:- Pointing to a photograph, a person tells his friend, “She is the granddaughter of the elder brother of my father.” How is the girl in the photograph related to his man?
Recent Answer : Added by N.Madhu Charan On 2022-03-09 16:35:25:
Neice
Ques:- Tell the difference between the largest number and the least number written with the digits 7, 3, 1, 4?
Recent Answer : Added by Nomula soumit sai kumar On 2022-10-21 19:49:16:
6084
7431 is largest number and 1347 is the least number from digits 1,3,4,7
so 7431-1347=6084
Ques:- What is the sum of all numbers between 100 and 1000 which are divisible by 14 ?
Recent Answer : Added by Kalyani Nanaware On 2022-08-14 16:43:06:
The numbers that lie between 100 and 1000 which are divisible by 14 are 112, 126,140 …,994
a = 112; l = 994, d = 14
n= (l−a)/d+1
= (994-112)/14+1
= 64
Sn=n/2(l+a)
= 64/2(994+112)
= 32*1106
= 35392
Ques:- What number comes next in the sequence: 10, 9, 60, 90, 70, 66?
Recent Answer : Added by DK BOSS On 2021-07-16 09:53:06:
This is a sequence of English letters, in numbers.
⇒ ten = 3 letters
⇒ nine = 4 letters
⇒ sixty = 5 letters
⇒ ninety = 6 letters
⇒ seventy = 7 letters
⇒ Sixty six =8 letters
⭕️This logical question goes with the no. of letters in the number!!!!!!!
⭕️∴ the biggest number with 9 letters will be ninety-six (96).
Ques:- Find the multiple of 11 in the following numbers.
A. 978626
B. 869756
C. 447355
D. 447355
Recent Answer : Added by Vikash Kumar Sinha On 2022-03-09 16:26:52:
A. 978626
Ques:- If you were into sales, what would you spend more time on, achieving your sales target or creating a good customer experience?
Recent Answer : Added by Krina Naik On 2022-09-02 17:03:36:
Both simultaneously because sales is the revenue generation team which is necessary for the commercial growth of the company whereas customer loyalty is again important for a company to go for long-term growth which is why good and satisfactory customer experience is necessary.
Ques:- A 16 stored building has 12000 sq.feet on each floor. Company A rents 7 floors and company B rents 4 floors. What is the number of sq.feet of unrented floor space.
Recent Answer : Added by Maddina Nikhil On 2021-08-09 17:01:43:
as total 16 floors out of them 11 were rented to A and B company .So remaining floors are 5 and each floor is 12000s.ft
So remaining = 12000*5
=60000
Ques:- The sum of the square of the three consecutive even natural numbers is 1460. Evaluate the numbers?
Recent Answer : Added by shraddha On 2022-05-17 09:06:40:
let square be x (squares are 4 sides)
i.e., X+X+X+X=4X
4X+3=1460
4X=1460-3
4X=1457
X=364.25
Ques:- Give an answer with an example how i should answer for tell about yourself?
Ques:- For how long you will be associated with the company?
Recent Answer : Added by DK BOSS On 2021-07-21 15:26:46:
“Since I’ve been working and gaining experience to get into this company, I’d like to stay a long time if I’m offered the job, since this is where I want to be. “ “As long as there’s a lot of work to do, then I’d be happy to stay for a long time. Since I’m a busybody, I like to being productive most of the time.”
Ques:- What do you expect from your future employer?
Ques:- X and Y invests Rs.3000 and Rs.4000 respectively in a business. If X doubles his capital after 6 months. In what ratio should X and Y divide that year’s profit?
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)