Ques:- Present population of town is 35,000 having males and females. If The population of males is increased by 6% and if the population of females is increased by 4%, then after 1 year the population becomes 36,700. Find the number males and females ?
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:- There are two positive numbers in the ratio 5:8. If the larger number exceeds the smaller by 15, then find the smaller number?
Recent Answer : Added by Akshat Thakkar On 2021-08-18 16:20:57:
25
Ques:- In a queue, Vijay is fourteenth from the front and Jack is seventeenth from the end, while Mary is in between Vijay and Jack. If Vijay be ahead of Jack and there be 48 persons in the queue, how many persons are there between Vijay and Mary ?
Recent Answer : Added by S pushpa On 2021-06-17 10:44:17:
Number of persons between Vijay and Jack = 48 – (14 + 17) = 17.
Now, Mary lies in middle of these 17 persons i.e. at the eight position.
So, number of persons between Viji and mary = 7.
Ques:- Two candles of equal lengths and of different thickness are there. The thicker one will last of six hours. The thinner 2 hours less than the thicker one. Ramesh light the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one. For how long did Ramesh lit two candles .
Recent Answer : Added by Admin On 2020-05-17 11:59:20:
In 3 hours thinker candle becomes half
In the same time thinner candle becomes one fourth. Now the
required condition is satisfied. So 3 Hours
Ques:- Draw close loopon propane refrigeration system
Ques:- 280% of 3940 = ?
A. 10132
B. 11032
C. 11230
D. 11320
Recent Answer : Added by jaya aishu On 2022-05-17 09:07:18:
Ques:- The length of the bridge, which a train 130 m long and traveling at 45 km/hr can cross in 30 sec is?
Ques:- Find the ratio of the curved surfaces of two cylinders of same heights if their radii are in the ratio 1:2.
Ques:- Considering that asking for the age is illegal they asked – “In which year did you graduate from the University?” (which means the same)
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 many person live in your family?
Ques:- Among the following statements, the statement which is not correct is
A. Every natural number is an integer.
B. Every natural number is a real number.
C. Every real number is a rational number.
D. Every integer is a rational number.
Recent Answer : Added by Cheryl Hepditch On 2021-12-20 03:54:45:
C. Every real number is a rational number.
Ques:- What is the average of first five prime numbers greater than 20 ?
Ques:- A train 800 m long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 min, then the length of the tunnel is?
Recent Answer : Added by Admin On 2022-09-28 18:39:42:
Let length of tunnel is x meter
Distance = 800+x meter
Time = 1 minute = 60 seconds
Ques:- If a boat is moving in upstream with velocity of 14 km/hr and goes downstream with a velocity of 40 km/hr, then what is the speed of the stream ?(a) 13 km/hr(b) 26 km/hr(c) 34 km/hr(d) none of these
Recent Answer : Added by DRS On 2022-08-14 16:31:31:
Speed of Stream = 1/2 (Downstream Speed – Upstream Speed)
=1/2(40-14)
=1/2(26)
=13km/h
method 2:
for down stream case :speed=Boat speed + Stream speed
for up stream case :speed=Boat speed – Stream speed
therefore, Bs + Ss =40
Bs – Ss =14
(-) (-) (-)
———————
2Ss=26
Ss=26/2 = 13Km/h
Stream speed= 13Km/hr
Ques:- Why haven’t you done your PG?
Ques:- A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 mph, the speed of the stream is:
Recent Answer : Added by Sanjeevnaidu On 2022-09-02 17:04:42:
Let speed of stream be v mph
Then,
36/(10-v) = 1.5hr + 36/(10+v)
On solving, we get speed of stream as v = 2mph.
Ques:- Perimeter of the back wheel = 9 feet, front wheel = 7 feet on a certain distance, the front wheel gets 10 revolutions more than the back wheel .What is the distance?
Recent Answer : Added by Admin On 2020-05-17 12:04:03:
Let the revolutins made by bigger wheel is: x
then revolution by smaller wheel will be: x+10
Now, the distance covered by both wheels will be same.
So,
7(x+10)=9x
7x+70=9x
70=2x
35=x
so distance travelled=9*35=315
or 7*45=315
Ques:- Would you be willing to relocate if required?
Ques:- The sum of three consecutive integers is 102. Find the lowest of the three?
Recent Answer : Added by Nicolae On 2021-09-22 16:55:53:
33
Ques:- What characteristics are most important in a good manager?
Ques:- Why do you Believe that you are Qualified for this Position?
Ques:- How long does a train 165 meters long running at the rate of 54 kmph take to cross a bridge 660 meters in length?
Recent Answer : Added by Nayana On 2022-09-23 18:07:00:
Speed of train = 54km/hr
= 54 x (5/18) m/s
= 15 m/s
Length of train = 165m
Time required to cross a bridge of 660m in length = (660+165) / 15
= 55 seconds
Ques:- What do you about six sigma and lean?
Ques:- Why do you want leave teaching job and come to bpo sector?
Ques:- Please tell about him self
Ques:- How you will handle the staff if they neglect to work
Ques:- $${60840} / {234}$$ = ?
A. 225
B. 255
C. 260
D. 310
Recent Answer : Added by narendra On 2022-09-18 09:03:25:
c
Ques:- Product of three consecutive nos. 210. What is the sum of two least numbers?
Recent Answer : Added by Admin On 2020-05-17 12:02:28:
5 * 6 * 7 = 210 ,
Two Least No’s are 5,6
There fore 5+6=11 is answer
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.