Solution: Area of the valley, A = 97280 km2
Level in the rise of water in the valley, h = 10 cm = (10/100000) km = (1/10000) km Thus, amount of rain fall in 14 day = Ah = 97280 km2 × (1/10000) km = 9.828 km3 Amount of rain fall in 1 day = 9.828 /14 = 0.702km3 Volume of water in 3 rivers = length × breadth × height = 1072 km × 75 m × 3 m = 1072 km × (75/1000) km × (3/1000) km = 0.2412 km3 x3 = 0.7236 km3 This shows that the amount of rain fall is approximately equal to the amount of water in three rivers. Optional Exercise – 13.5 - 10th Mathematics –Surface area and Volume
20 Comments
Ng
15/3/2015 05:08:25 am
It is wrong as first it was 97280 but u typed 98280 while dividing.
Reply
Akshai Kumar
17/11/2017 06:33:49 pm
One fortnight is equal to 14 days
Reply
Radhav
22/3/2018 08:19:09 pm
Fortnight bro
Reply
riroi
18/3/2016 02:43:34 pm
it's very confusing ..😕
Reply
Shatakshi
19/3/2016 07:16:50 am
Its too muccccch confusing and hmm moreover our answer doesn't matched
Reply
rtrrr
26/1/2017 05:04:24 pm
wat is this
Reply
Hansika
5/2/2017 05:07:58 pm
Hey!!
Reply
Rohit
10/2/2017 10:06:42 pm
It is very frustrating
Reply
Shruti
7/3/2017 07:47:11 am
It is not so good solution
Reply
Riya
22/10/2017 07:41:20 pm
Very worst
Reply
arjun
28/10/2017 06:26:41 am
it's wrong
Reply
Akshai kumar
17/11/2017 06:32:16 pm
Hey guys please check the question that the area of valley is 98280km^2 not 97280km^2 and also the commenter so please check that one fortnight is equal to 14 days don't confuse yourselves
Reply
shyam gupta
13/1/2018 06:15:29 pm
one fortnight is equal to 15 days.
Reply
kushagra
22/1/2018 12:49:11 am
thank you sir you are right keep it up
Reply
j
18/2/2018 01:54:34 pm
wrongggggggg
Reply
shruti
22/2/2018 11:20:37 am
What??? I can't clearly understand......
Reply
Leave a Reply. |