Interested to Buy Any Domain ? << Click Here >> for more details...
There are two lights one is green another one is red. green blinks 2 times per a minute, red blinks 3 times per 2 minutes. If two lights are start at same time how many time they blink together in 1 hours.
- 7 Answers
- 10137 Views
- Zoho, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / harsha
30
first light flash twice in a minute...4 times in 2 minutes..
starts at 0 and flashes at 30 60 90 120 ..seconds
second light thrice in 2 minutes..
starts at 0 and flashes at 40 80 120..seconds
2 lights flash coincides one time in 2 minutes (at 120th second)
therefore ..for 60 minutes ,2 lights flash coincides 30 times..
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / jegathish
Green light blink every 30 sec(2 times per minute), and red light blink every 40 sec(3 times per 2 minute)..
green blinks 30,60,90,120,...
red blinks 40,80,120,..
so every 2 minutes lights blink together ,which means 1 hour=60 min......
so 60/2 = 30 times both lights are blink together.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / ishwarya
For 2 minutes green light blinks 4 times (2 times in 1 minute means 4 times in 2 minutes)
For the same two minutes starting at the same time red light blinks 3 times.
So for the first two minutes both the light together blinks 7 times.
2 mins---->7 times (7*(2/2))
4 mins---->14 times (7*(4/2))
6 mins---->21 times (7*(6/2))
8 mins---->28 times (7*(8/2))
....
60 mins---->210 times (7*(60/2))
| Is This Answer Correct ? | 1 Yes | 3 No |
300
for a hour 60 min
for green 60x2=120
red =60x3=180
so 12+180=300
| Is This Answer Correct ? | 1 Yes | 4 No |
am going to write iocl exam can u pls send me the question paper
who invented internet
If + means * and * means / and / means %. what is the value of 2+3*5/7?
in which state does bay of bengal exist
In a lock of 4 rings there r five characters how many unsuccessful attempts can be made ?
if the area of square increases by 69% then side of the square increases by:
a sum 's' is devided into 4 parts.second person gets Rs 10 more than first.3rd person is Rs 10 more than second, 4th is 10 more than 3rd. how much amount do 1st person get.
Find the Next Series Nuumber 21, 463, 687, 238, 1134, ----
please give me model Question papers for bank recruitment exams please send it to my mail address shubhangijain5@gmail.com
if clouds are air, air are water and so on where birds fly?
19 Answers Cognizant, Patni, Vision Infotech,
A family I know has several children. Each boy in this family has as many sisters as brothers but each girl has twice as many brothers as sisters. How many brothers and sisters are there?
Four of the following five are alike in a certain way and hence form a group. Which one of the following does not belong to that group? (a) 63 (b) 64 (c) 39 (d) 48 (e) 79
English 
