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It’s good to remind ourselves of what we are learning and what we know about the disease that is caused by Sars coinfection the disease we call COVID19. Most people that develop a disease are developed a […]

supriya asked a new question 12 hours, 17 minutes ago
Dr. Mike Ryan, WHO Emergencies Executive Director, says about whether it is safe for children to go back to school during COVID19.
Children can spread the disease where the vast majority of children don’t […]

supriya asked a new question 2 days, 3 hours ago
Indian cricket was born in England after the 1983 Word Cup. The legendary Kapil Dev and the socalled Kapil Devils team won the 1983 prudential cup at Lord’s, England, transforming the face of cricket in India and […]

supriya asked a new question 1 week ago
Friendship day also Called as International Friendship Day or Friend’s Day is a day celebrated as a special relationship between Friends.
Friendship Day is celebrated in a variety of countries. It was first […]

supriya asked a new question 3 weeks, 3 days ago
As declared by Karnataka Chief Minister BS Yediyurappa on Saturday, a full lockout will take place in the urban and rural districts of Bengaluru from 8 p.m. on 14 July to 5 a.m. on 22 July.
What do you […]

supriya asked a new question 1 month ago
Perman is a Japanese manga series that is loved by all kids. And 90’s kids were Diehard fan of Perman.

supriya answered a question 1 month, 2 weeks ago
Also called as Nursery web spiders.

supriya answered a question 1 month, 2 weeks ago
El Niño is an abnormal weather pattern caused by the warming of the Pacific Ocean near the equator, off the coast of South America.

supriya answered a question 1 month, 2 weeks ago
Maybe the goal was to raise the profile of family farming and smallholder farming.

supriya answered a question 1 month, 2 weeks ago
21st June

It cannot be replied with a ‘yes’ or a ‘no’ or labelled real or wrong. If you can respond or respond to Google briefly, it doesn’t inspire intensive research or creative output. Essential issues are also tailored […]

supriya asked a new question 1 month, 2 weeks ago
Relative speed = = (45 + 30) km/hr
= ( 75 * 5/18) m/sec
= ( 125/6) m/sec.
We have to find the time taken by the slower train to pass the DRIVER of the faster train and not the complete train.
So, […]

supriya asked a new question 1 month, 2 weeks ago
Let the speed of each train be x m/sec.
Then, the relative speed of the two trains = 2x m/sec.
So, 2x = [(120 + 120)/12]
=> 2x = 20
=> x = 10.
Therefore, Speed of each train = 10 m/sec = ( 10 * […]

supriya asked a new question 1 month, 2 weeks ago
Speed of the first train = ( 120/10) m/sec = 12 m/sec.
Speed of the second train = ( 120/5) m/sec = 8 m/sec.
Relative speed = (12 + 8) = 20 m/sec.
Therefore, Required time = [ (120 + 120)/20 ] sec = 12 sec

supriya asked a new question 1 month, 2 weeks ago
Let the speed of the second train be x km/hr.
Relative speed = (x + 50) km/hr
= [ (x + 50) * 5/18 ] m/sec
= [ (250 + 5x)/18 ] m/sec.
Distance covered = (108 + 112) = 220 m.
Therefore, 220/[( 250 + […]

supriya asked a new question 1 month, 2 weeks ago
Relative speed = (40 – 20) km/hr = ( 20 * 5/18) m/sec = ( 50/9) m/sec.
Therefore, Length of faster train = ( 50/9 * 5) m = (2509) m
= 27 (7/9) m

supriya asked a new question 1 month, 2 weeks ago
2 kmph = ( 2 * 5/18) m/sec = (5/9) m/sec.
4 kmph = ( 4 * 5/18) m/sec = (1/9) m/sec.
Let the length of the train be x meters and its speed by y m/sec.
Then, [( x/ (y5/)]= 9 and,
[( x/(y10/9) = […]

supriya asked a new question 1 month, 2 weeks ago
4.5 km/hr = ( 4.5 * 5/18) m/sec = (5/4) m/sec = 1.25 m/sec,
5.4 km/hr = ( 5.4 * 5/18) m/sec = (3/2) m/sec = 1.5 m/sec.
Let the speed of the train be x m/sec.
Then, (x – 1.25) x 8.4 = (x – 1.5) x 8 […]

supriya asked a new question 1 month, 2 weeks ago
Let the length of the first train be x meters,
Then, the length of the second train is ( x/2) meters,
Relative speed = (48 + 42) kmph = ( 90 * 5/18) m/sec = 25 m/se,
Therefore, [x + (x/2)]/25 = 12 or […]

supriya asked a new question 1 month, 2 weeks ago
Suppose they meet x hours after 7 a.m.
Distance covered by A in x hours = 20x km.
Distance covered by B in (x – 1) hours = 25(x – 1) km.
Therefore, 20x + 25(x – 1) = 110
=> 45x = 135
=> x = […]
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