Ques:- The average age of 12 students is 20 years. If the age of one more student is included, the average decreases by 1. What is the age of the new student?
A. 5 years
B. 6 years
C. 7 years
D. 9 years
Recent Answer : Added by DK On 2022-03-09 16:28:54:
Correct option is C)
Let be students are consider as child
Let the age of child added later be x years.
average age of 12 children =20 years
∴ Total age of 12 children =20×12=240 years
After one more child is added-
Average of 13 children =20−1=19 years
Average age of 13 children =
13
sum of 12 children+x
19=
13
240+x
⇒240+x=247
⇒x=247−240=7 years
Hence the age of child added later is 7 years.
Ques:- What is an example of a time you failed?
Ques:- A man owns 2/3 of the market research beauro business and sells 3/4 of his shares for Rs. 75000. What is the value of Business.
Recent Answer : Added by Admin On 2020-05-17 12:01:38:
1,50,000
Ques:- Do you have or know someone with pain?
Ques:- 3, 5, 8, 13, 24, 39, 72 FIND THE WRONG NUMBER
Recent Answer : Added by Admin On 2020-05-17 12:04:10:
3*2-1=5
5*2-2=8
8*2-3=13
13*2-4=22
22*2-5=39
39*2-6=72
so series is 3,5,8,13,22,39,72
24 should be replaced by 22
24 is wrong…….
Ques:- A train 280 m long is moving at 60 km/hr. Time taken by the train to cross a tunnel 220 m long is
A. 15 sec
B. 20 sec
C. 25 sec
D. 30 sec
Recent Answer : Added by Swapna On 2022-10-07 17:19:10:
30 Sec
Ques:- By selling 50 meters of cloth. I gain the selling price of 15 meters. Find the gain percent?
Ques:- Five farmers have 7, 9, 11, 13 & 14 apple trees, respectively in their orchards. Last year, each of them discovered that every tree in their own orchard bore exactly the same number of apples. Further, if the third farmer gives one apple to the first, and the fifth gives three to each of the second and the fourth, they would all have exactly the same number of apples. What were the yields per tree in the orchards of the third and fourth farmers?
Recent Answer : Added by John Rony On 2021-06-23 17:56:01:
So we consider the 2nd statement first. We can form an equation out of it.
14x-6=13y+3=9z+3
Using this, we can understand that the multiple of 14 and the multiple of 13 and 9 must have a difference of 9. The easiest way to ensure that is multiplying it by 9
14*9=126
13*9=117
If the 5th farmer gives 3 apples to the 4th farmer, they would have 123 and 120 apples respectively. However, we also know that the 2nd farmer has 117 apples (13*9=117, and this is a multiple of 9) if the 5th farmer gives 3 apples too the 2nd farmer, the 3rd, 4th and 5th farmers would have 120 apples each.
Now that we got 120, we should check if the first part of the question makes sense along with it. The equation would be
7a+1=11b-1=120
We know that 11*11=121 and 7*17=119. When we add 1 to 119 and subtract 1 from 121, we get 120 for each. In this way, all the farmers have 120 apples each.
Therefore, the 3rd farmer had a yield of 11 per tree and the 4th farmer had a yield of 9 per tree.
Ques:- Reena and Shaloo are partners in a business. Reena invests Rs.35,000 for 8 months and Shaloo invests Rs.42,000 for 10 months. Out of a profit of Rs.31, 750, Reena’s share is
A. Rs. 9471
B. Rs. 12, 628
C. Rs. 18,040
D. Rs. 18,942
Recent Answer : Added by narendra On 2022-09-18 09:02:49:
B
Ques:- Sides of a rectangular park are in the ratio 3: 2 and its area is 3750 sq m, the cost of fencing it at 50 ps per meter is?
Recent Answer : Added by admin On 2022-08-14 16:46:38:
1875
Ques:- What is the missing number in the series 2, 6, 12, 20, 30, ..?
A. 72
B. 42
C. 52
D. 62
E. 56
Recent Answer : Added by ANTONIS AJAY SOLOMON On 2022-10-11 16:07:08:
The answer is 42
Ques:- Tell me about your self and past job
Ques:- How do you feel about being told that you are doing something wrong?
Ques:- X is half good a work man as Y and together they finish a job in 14 days. In how many days working alone Y finish the job?
Recent Answer : Added by Sammani On 2021-08-15 07:59:00:
21 days
Ques:- The average amount with a group of seven numbers is Rs. 20. If the newly joined member has Rs. 50 with him, what was the average amount with the group before his joining the group?
Ques:- Find out the wrong number in each sequence:
22, 33, 69, 99, 121, 279, 594
A. 594
B. 279
C. 121
D. 33
Recent Answer : Added by Admin On 2022-09-28 18:38:17:
B. 279
Ques:- Are you familiar with collaboration tools? Whichcommunication method do you prefer for talk, email and chat?
Ques:- Have you applied to any other areas apart from banking?
Ques:- Why do you left your job?
Ques:- 121 : 169 :: 361 : __
Recent Answer : Added by chereddynagirreddy On 2021-08-11 07:22:43:
441=21^2
Ques:- If an airplane starts at point R and travels 14 miles directly north to S, then 48 miles directly east to T, what is the straight-line distance (in miles) from T to R?
Ques:- Education qualification
Ques:- How can you plant 11 tree in 6 row and each row contain 4 tree?
Ques:- A person with some money spends 1/3 for cloths, 1/5 of the remaining for food and 1/4 of the remaining for travel. He is left with Rs 100/- How much did he have with him in the begining?
Recent Answer : Added by Admin On 2020-05-17 12:00:38:
ans: 250 rs exactly
Ques:- A can do a job in 18 days and B can do it in 30 days. A and B working together will finish twice the amount of work in ——- days?
Recent Answer : Added by Admin On 2022-09-29 17:11:51:
A & B one day work= 1/18 + 1/30= 8/90
As we know that number of work is 1
1÷8/90= 1*90/8= 90/8.
Since they say “ twice the amount of work
Then ,2*90/8= 22.5 days
Ques:- Who made an impact with the New Look after establishinga Paris salon in 1947?
A. Christian Dior
B. Coco Chanel
C. Elsa Schiaparelli
D. Hubert de Givenchy
Recent Answer : Added by H Chris Sparks On 2022-04-02 06:57:48:
A. Christian Dior
Ques:- Why did u choose this firm
Ques:- Find the greatest number which will divide 25, 73 and 97 so as to leave the same remainder in each case.
A. 12
B. 18
C. 24
D. 32
Recent Answer : Added by Koyena choudhury On 2023-07-08 16:27:37:
required number =H.C.F of (73-25),(97-73) & (97-25)
=H.C.F of 48 , 24 and 72 = 4 (c)
Ques:- Why you interested for this job?
Ques:- Rs.8000 become Rs.9261 in a certain interval of time at the rate of 5% per annum of C.I. Find the time?
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Correct option is C)
Let be students are consider as child
Let the age of child added later be x years.
average age of 12 children =20 years
∴ Total age of 12 children =20×12=240 years
After one more child is added-
Average of 13 children =20−1=19 years
Average age of 13 children =
13
sum of 12 children+x
19=
13
240+x
⇒240+x=247
⇒x=247−240=7 years
Hence the age of child added later is 7 years.