Take a note while surfing.
Give your Note a Colorful Tag.
Stay on same information and in Sync wherever you are.
Organize your information,It may take Shape.
Differ your Content by Color.
Easy to pull up your content from anywhere anytime.
Don't Let information to miss,Because it take shape
Simple an Easy Way to take a note.
Get the same in next visit.
Please wait...
1. The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg, then the weight of B is:
Answer: Option D
Explanation:Let A, B, C represent their respective weights. Then, we have:
A + B + C = (45 x 3) = 135
A + B = (40 x 2) = 80
B + C = (43 x 2) = 86
Workspace
Tags: No Tags on this question yet!
2. What is the average (arithmetic mean) of all the multiples of ten from 10 to 190 inclusive?
Answer: Option C
Explanation:Answer:100
Solution: All the multiples are (10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190)/19=100
Workspace
Tags: BOA (Bank of America)
3. The average salary of 3 workers is 95 Rs. per week. If one earns Rs.115 and second earns Rs.65 how much is the salary of the 3rd worker.
Answer: Option C
Explanation:Lets assume three workers a a,b and c
Their average salary is (a+b+c)/3 = 95
=> a+b+c=285
a=115,
b=65
So c=285-115-65=105
Workspace
Tags: Capgemini
4. The average length of three tapes is 6800 feet. None of the tapes is less than 6400 feet. What is the greatest possible length of one of the other tapes?
Answer: Option A
Explanation:Minimum length = 6400
2 tap can be of length 6400,
So the next one will be max = (6800*3)-(2*6400)=7600
Workspace
Tags: Capgemini
5. When a student weighing 45 kgs left a class, the average weight of the remaining 59 students increased by 200g. What is the average weight of the remaining 59 students
Answer: Option C
Explanation:Lets assume average weight of the 59 students = x kgs.
=> Total weight of the 59 = 59*x
Given when the weight of this student who left is added, the total weight of the class = (59x + 45)
The average weight decreases by 0.2 kgs, when these students included.
=> (59x+45)/60=(x-0.2)
=> (59x+45)= 60(x-0.2)
=> 59x + 45 = (60A - 12)
=> 45 + 12 = 60x - 59x
=> x = 57
Workspace
Tags: nagarro
6. In Arun's opinion, his weight is greater than 65 kg but less than 72 kg. His brother doest not agree with Arun and he thinks that Arun's weight is greater than 60 kg but less than 70 kg. His mother's view is that his weight cannot be greater than 68 kg. If all are them are correct in their estimation, what is the average of different probable weights of Arun?
Answer: Option A
Explanation:Let Arun's weight by X kg.
According to Arun, 65 < X < 72 -------(1)
According to Arun's brother, 60 < X < 70 ------ (2)
According to Arun's mother X <= 68 --------- (3)
The values satisfying all above 3 conditions are 66, 67 and 68.
so average = (66 + 67 + 68)/3 = 201/3 = 67 kg.
Workspace
Tags: Capgemini
7. A library has an average of 510 visitors on Sundays and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is:
Answer: Option D
Explanation:Required average
=> (510 * 5 + 240 * 25)/30.
=> 8550/30
=> 285.
Workspace
Tags: Capgemini
8. The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?
Answer: Option B
Explanation:Given total weight increased by 2.5 kg.
So total weight increased = (8 x 2.5) kg = 20 kg.
Weight of the new person = (65 + 20) kg = 85 kg.
Workspace
Tags: Capgemini
9. The average of 7 consecutive numbers is 20. The largest of these numbers is
Answer: Option C
Explanation:Let the first number be x,
So last number will be (x+6)
Average = [x+(x+1)+(x+2)+(x+3)+(x+3)+(x+4)+(x+5)+(x+6)]/7 = 20
=> (7x+21) = 20*7
=> 7x = 119
=> x = 17
So largest number= (x+6) = (17+6) = 23
Workspace
Tags: No Tags on this question yet!
10. The average of four consecutive odd numbers is 24. Find the largest number.
Answer: Option B
Explanation:The numbers will be x, x+2, x+4, x+6
so [x+(x+2)+(x+4)+(x+6)]/4=24
=>(4x+12)/4=24
=> (x+3)=24
=>x=21
So largest number = (21 + 6) = 27
Workspace
Tags: No Tags on this question yet!