Real Numbers

This question is related to real life problems

Transcript

00:00This is question number 4 of exercise 1.3.

00:05In this question, Moomna walks 3.5 km per hour.

00:11She took a 12-hour walk.

00:13How far did she walk?

00:15Means in this question, the information provided to us is that

00:21Moomna has walked 3.5 km per hour.

00:28And how many hours did she walk?

00:32How much time did she take?

00:33That is 12 hours.

00:34And we have to know how far.

00:36How far means how much distance did she cover?

00:40How much distance did she travel?

00:42First of all, we will write her statements.

00:48Moomna walks 3.5 km per hour.

00:56Basically, it is her speed.

00:58She is walking at this speed.

01:00Time taken.

01:08Time taken by her is 12 hours.

01:13We have to know distance.

01:15How far.

01:16You have the formula of speed.

01:18Speed is equal to distance divided by time.

01:26Speed is already given to us.

01:29That is 3.5 km per hour.

01:33So, we will write speed here as 3.5.

01:36We do not know distance.

01:43And time is 12 hours.

01:46Now, we can write 1 below every number.

01:50We will do cross multiplication.

01:533.5 multiplied by 12.

01:57And 1 multiplied by distance.

01:59Basically, that is distance.

02:023.5 multiplied by 12.

02:06We will get 42.

02:09Basically, the distance is 42 km.

02:15Distance covered is 42 km.