Ques:- Radius of sphere is increased by 50%. By how much percentage is surface area is increased?
Recent Answer : Added by Admin On 2020-05-17 11:59:36:
let original radius=100
original surface area lets say it x =4 * (22/7) * 100 *100
new radius=100 + 50% of 100=150
new surface area lets say it y = 4 * (22/7)* 150* 150
increase in surface area=((y-x)/x) * 100
i.e.
((4*(22/7)*150*150 – 4*(22/7)*100 *100) / (4*(22/7)*100*100))*100
=125
so the answer is 125%.
hope this helps you.
Ques:- Sushil got thrice as many marks in English as in Science. His total marks in English, Science and Maths are 162. If the ratio of his marks in English and Maths is 3:5, find his marks in Science?
Recent Answer : Added by Akhilendra pratap Singh On 2022-09-23 18:02:22:
Marks in thrice in english as in science
so if science marks is x
then english marks = 3x
lets maths marks = y
ratio of english and maths marks is
3x/y = 3/5
=> y = 5x
and total marks = 162
3x + x + 5x = 162
x = 18 —-answer
Ques:- LCM and HCF of two numbers are 48 and 8 respectively. If one of the numbers is 16, the second number is
A. 36
B. 24
C. 18
D. 12
Recent Answer : Added by MONICA On 2021-11-22 17:29:35:
ANS = 24.
16 = 2^4
24 = 2^3 x 3
H.C.F of 16 and 24 = 8
L.C.M will be 48
Ques:- How many tangents can be drawn with in three circles if they do not lie with in each other
Recent Answer : Added by Admin On 2020-05-17 12:01:17:
we can draw 12 tangents, 4 for 2 circles and 12 for 3
circles
Ques:- Why have you had so many jobs?
Ques:- What about your family
Ques:- If $ stands for triple and # for negation, what is the value of #$#3-#5
Ques:- A rectangular courtyard, the sides of which are in the ratio of 4:3, cost Rs.600 for paving at 50 p per m2; find the length of the diagonal of the courtyard?
Recent Answer : Added by Tduwem On 2021-11-13 11:02:25:
5
Ques:- Why do you want work in our company?
Ques:- WHAT MOTIVATES YOU TO WORK
Ques:- Divide Rs.32000 in the ratio 3:5?
Ques:- A, B, C, D, E and F are six members of a family. A is the mother of B, who is the husband of D. F is the brother of one of the parents of C. D is the daughter-in-law of E and has no siblings. C is the son of D. How is C related to A?
Recent Answer : Added by Nathan Abebe On 2022-04-02 06:59:56:
C is grand child of A
Ques:- There are four prime numbers written in ascending order of magnitude. The product of the first three is 385 and of the last three is 1001. Find the fourth number?
Recent Answer : Added by GURUKISHORE On 2021-09-18 16:12:09:
13
Ques:- Family Back Ground,Educational Background
Ques:- How many lines can be drawn in a 2D plane such that they are equidistant from 3 non-collinear points ?
Ques:- Find the least number with which 16200 should be multiplied, to make it a perfect cube.
Recent Answer : Added by Atif On 2022-12-05 16:13:24:
2
Ques:- How can you be an asset to our Organization
Ques:- How well you work with a team?
Ques:- The face value of 8 in the number 458926 is
A. 8
B. 1000
C. 8000
D. 8926
Recent Answer : Added by Bhanu Kiran On 2022-12-05 16:13:04:
A
Ques:- How quickly do you adapt to new technology?
Ques:- What is your role & responsibility in current company
Ques:- How do you motivate your team members?
Ques:- Why do you wish to change your Career Specialization?
Ques:- What if you get a canada degree in india ,would you like to go to canada again for higher studies?
Ques:- Can you describe how you solved a work or school problem?
Ques:- If n and p are both odd numbers, which of the following is an even number?
A. n + p
B. n + P + 1
C. np + 2
D. np
Recent Answer : Added by egspillay student On 2022-08-14 16:44:13:
n+p
Ques:- Consider a NxN matrix in which the elements are either 0 or 1. Find how many such matrixes are possible that are symmetric in nature(the matrix and its transpose count as 1.
Ques:- X can do a piece of work in 10 days and Y can do it in 15 days and Z can do it 20 days. They started the work together and X leaves after 2 days and Y leaves after 4 days from the beginning. How long will work lost?
Ques:- X can do a piece of work in 40 days; Y can do the same in 30 days. X started alone but left the work after 10 days, then Y worked at it for 10 days. Z finished the remaining work in 10 days. Z alone can do the whole work in?
Ques:- The average of first ten prime numbers which are odd is?
Recent Answer : Added by Admin On 2022-09-28 17:42:11:
The first 10 odd prime numbers are 3, 5, 7, 11, 13, 17, 19, 23, 29 and 31.
Sum of the odd prime numbers = (3+5+7+11+13+17+19+23+29+31)
= 158
Number of odd prime numbers = 10
We know, Average = (sum of the 10 odd prime numbers ÷ Number of odd
prime numbers)
Average =
= 15.8
∴ The Average of first 10 prime numbers which are odd is 15.8
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional
Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
let original radius=100
original surface area lets say it x =4 * (22/7) * 100 *100
new radius=100 + 50% of 100=150
new surface area lets say it y = 4 * (22/7)* 150* 150
increase in surface area=((y-x)/x) * 100
i.e.
((4*(22/7)*150*150 – 4*(22/7)*100 *100) / (4*(22/7)*100*100))*100
=125
so the answer is 125%.
hope this helps you.