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:- 1/8 is devided by ‘s’ , if ‘s’ is incresed by 2 times, what is the result?
Recent Answer : Added by Admin On 2020-05-17 12:00:00:
decrease two times
Ques:- Why do you want leave teaching job and come to bpo sector?
Ques:- Express a speed of 36 kmph in meters per second?
Recent Answer : Added by Anjum Parveen On 2022-03-09 16:31:40:
s=36kmph
in meter per second is=36*5/18=>10
Ques:- Two computers each produced 48000 public utility bills in a day. One computer printed bills at the rate of 9600 an hour and the other at the rate of 7800 an hour. When the first computer finished its run, how many bills did the other computer still have to print?
Recent Answer : Added by vinita On 2022-08-14 16:33:14:
9000
Ques:- HOW WOULD YOUR COLLEAGUES DESCRIBE YOU?
Ques:- P and Q can do a piece of work in 7 days. With the help of C they finish the work in 5 days. R alone can do that piece of work in?
Ques:- A 600 meter long train crosses a signal post in 40 seconds. How long will it take to cross a 3 kilometer long bridge, at the same speed?
Recent Answer : Added by vinita On 2022-08-14 16:33:16:
4 mins
Ques:- (103.7 x 101.3)2 = 10?
Recent Answer : Added by Admin On 2020-05-17 12:03:27:
( c ) 10
Ques:- What value addition you bring to the table?
Ques:- There is six letter word VGANDA . How many ways you can arrange the letters in the word in such a way that both the A’s are together.
Recent Answer : Added by Admin On 2020-05-17 12:02:31:
120 (5×4!)
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:- Are you interested to work in service sector?
Ques:- Find the cost of fencing around a circular field of diameter 28 m at the rate of Rs.1.50 a meter?
Recent Answer : Added by Prachi Bees On 2021-12-10 16:35:10:
In the example first we have to find the area of the field
we have given the following values ,
cost of fencing per meter = Rs 1.50
Diameter of circular field = 28
We have to find the area , a = ?
We know that,
Area = 2 π r
= 2 x 22/7 x 14
= 2 x 22 x 2
= 44 x 2
= 88 sq. m
So, area of circle is 88 sq.m
Now just multiply it with 1.50
cost of fencing = 88 x 1.50
= Rs. 132
So, the cost of fencing the circular field is Rs. 132
Ques:- What is the largest prime number stored in 8 bit memory?
Recent Answer : Added by keerthana On 2022-04-02 06:59:15:
251
Ques:- There are 3 baskets. one of them have apples, one hasoranges only and the other has mixture of apples andoranges. The labels on their baskets always lie. (i.e. ifthe label says oranges, you are sure that it doesn't haveoranges only,it could be a mixture) The task is to pick onebasket and pick only one fruit from it and then correctlylabel all the three baskets.
Recent Answer : Added by Gili On 2022-09-02 17:04:56:
Assum that the lables are : mixture, apples and orange
we have to take out one fruit from the mixture basket an see:
if it’s an apple –
it means that this basket is filled with apples
and so, the third basket is mixture
and the second one is filled with oranges.
if it’s an orange –
it means that this basket is filled with oranges
and so, the second basket is mixture
and the third one is filled with apples.
Ques:- Every thing about me & my vision & mission.
Ques:- Where have you saved money handled more with less or found other ways to cut cost or increase productivity?
Ques:- Tell me about a situation when your work was criticized.
Ques:- How many street lights are there in pune?
Ques:- What should i say if anybody ask me to say about me which is not in my resume.
Ques:- If you subtract -1 from + 1, what will be the result?
A. -1
B. 1
C. 2
D. -2
Recent Answer : Added by Alok On 2022-08-14 16:29:01:
1 – (-1) = 1 +1 = 2
Ques:- On a particular day A and B decide that they would either speak the truth or will lie. C asks A whether he is speaking truth or lying? He answers and B listens to what he said. C then asks B what A has said B says “A says that he is a liar” What is B speaking ?(a) Truth(b) Lie(c) Truth when A lies(d) Cannot be determined
Ques:- Are you a post graduate?
Ques:- How many bearers will an explorer need for a 6 day march if each man can carry the food stuff of one man for 4 days?
Ques:- How do you feel about the working hours from 9 to 5?
Ques:- Jack & Jill went to the hill….In going to hill (upword Direction)…Jack went to the hill first nd waited for Jill for “x” hours.. Jack’s speed was then twice of Jill.. In the down word direction Jill can go 3km in a hour, while Jack can go 1km in 1 hour.. Jill reach the ground 1st nd waited for Jack for “x” hours.. Total journey they traveled is 6 km.. Find the speed of Jack…
Recent Answer : Added by Admin On 2020-05-17 12:03:21:
previous ans wrong again..!!!!
first find x its 2 hours
total journey 6 hrs 3km up and also down
jill takes one hr to come down and jack takes 3 hrs so x
is 2 hours….
And while going up jack goes at 1.5km/hr and jill goes at
0.75 km hr so to travel 3 km they take 2 hrs and 4 hrs
respectively…!!! x again is 2 hrs…
so jack totally takes 5 hrs to travel 6 km
therfore speed is 6/5 km per hour
thats is 1.2 km per hour is the correct answer
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:- A large tanker can be filled by two pipes A and B in 60 and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill it together for the other half?
Recent Answer : Added by Raja On 2022-11-15 16:37:18:
30mins
Let the total time taken to fill the tank be x minutes.
Then, work done by B in half hour + work done by (A+B) in half hour =1.
(
40
1
×
2
x
)+(
60
1
+
40
1
)×
2
x
=1
⇒
80
x
+
48
x
=1
⇒
240
3x+5x
=1
⇒8x=240
⇒x=30 min
Ques:- If the operation,^ is defined by the equation x ^ y = 2x + y,what is the value of a in 2 ^ a = a ^ 3
Recent Answer : Added by Ananya Jignyasha On 2021-07-14 14:29:35:
2^a = 2 x 2+a
a^3= 2 x a + 3
=> 4+a= 2a + 3
=> a = 1
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.