Question

200m level mark water in delhi during rainy season level rise by 5 cm every hour how many hours the level will reach 245 level mark​

Answer 1

Step-by-step explanation:

45m=4500cm

5cm/h so,

4500cm = 4500/5=900h

Answer 2

Answer:

i think question is little incorrect if it is correct then answer is 901 hrs

Step-by-step explanation:

Normal level is 200 meters

Converting meter into cm

200 m = 20,000 cm

Every hour rise = 5 cm

To reach value 245 m

245m = 24500 cm

It is in AP

20000, 20005, 20010, -----------24500

FORMULA OF AP WE ARE GOING TO USE

$a_{n} = a + (n-1)d\\24500 = 20000 + (n-1)5\\24500 - 20000 = (N-1)5\\4500 = (n-1)5\\\frac{4500}{5} = n-1\\900 = n - 1\\900 + 1 = n\\901 hrs = n$