Question

Milli and bittoo start walking towards each other at 9 am from jaipur and kanpur respectively. Speed of milli and bitto are 70 kph and 90 kph .they meet at delhi at a certain time and have lunch together at 10:39 am they again start walking towards their destination if milli reached at kanpur on 12:27 pm how much time they spent together to do lunch?

Answer 1

✰ Question :- Milli and bittoo start walking towards each other at 9 am from jaipur and kanpur respectively. Speed of milli and bitto are 70 kph and 90 kph .they meet at delhi at a certain time and have lunch together at 10:39 am they again start walking towards their destination if milli reached at kanpur on 12:27 pm how much time they spent together to do lunch ?

✪ Solution :-

Let solve it in a very simple way .

First lets Move to The second part of given data.

It has been said that, after lunch they Milli start again at 10:39 AM and reached kanpur at 12:27 PM.

➺ That means Time taken by Milli From Meeting Point to Kanpur is = 12:27 - 10:39 = 11 : 87 - 10:39 = 1 : 48 hours = 1 + (48/60) = 1 + (4/5) = (9/5) Hours.

And Speed of Milli is given , = 70km/h .

➪ That Means, we can say that, distance between their Meeting Point and kanpur is =

⟿ Distance = Speed * Time

⟿ D = 70 * (9/5)

⟿ D = 126 km .

_________________________________

So, now , we can say that, before meeting Bittoo cover 126km distance . ( As he started From Kanpur. )

→ So, Time taken by Bittoo to reach meeting point at the speed of 90km/h is :-

➳ Time = Distance / Speed

➳ Time = 126 / 90

➳ Time = (7/5) Hours .

___________________________

With This we can say that, Milli also Travel for (7/5) hours before coming to the Meeting point .

So,

→ As they started at 9AM, and meets after (7/5) hours ,

That, Means, They meet at :-

☛ 9 AM + (7/5) hours .

☛ 9 AM + 1 hour + (2/5) Hours .

☛ 10 AM + 24 min.

☛ 10:24 AM.

___________________________

Now, they meet at 10:24 AM and have lunch , than starts at 10:39 AM.

So,

☞ Time they took in Lunch = 10:39 - 10:24 = 15 minutes.

Hence, They have spent 15 minutes time together in Lunch..

___________

(❦❦ Nice Question ❦❦) .

Answer 2

Answer:

They spent 15 minutes together having lunch

Step-by-step explanation:

Question :-

Milli and Bittoo start walking towards each other at 9am from Jaipur and Kanpur respectively . Speed of Milli and Bitto are 70 kmph and 90 kmph . They meet in Delhi at a certain time and have lunch together at 10:39am , they again start walking towards their destination if Milli reached at Kanpur on 12:27pm how much time they spent together to do lunch ?

We Have :-

They start at 9 am

Speed of Milli = 70 kmph

Speed of Bitto = 90 kmph

They have Lunch together at 10:39am

They reach back at 12:27pm

To Find :-

How much time they spent together to do lunch

Formula Used :-

$Speed = \dfrac{Distance}{Time}$

Solution :-

Milli

Starts from meeting point at 10:39am

Reaches Kanpur at 12:27pm

Time taken :-

12:27 - 10:39

108 mins

1.8 hours

Speed :-

70 kmph

Distance :-

Speed * Time

70 * 1.8

126 Km

Bitto Covered 126 km Before meeting

Speed :-

90 Kmph

Time :-

Distance / Speed

126 / 90

1.4 hours

So 1.4 hours ( 84 mins ) from 9am

9am + 84 min

10:24 am

They meet at 10:24am

They had lunch till 10:39am

Time spent together :-

10:39 - 10:24

15 mins

They spent 15 minutes together having lunch