Question

13. In a hostel, there are 800 children. There is enough food for them for 60 days. If 400 more children join the hostel, how many days will the food last? 14. An airplane flies 1600Km in 2 hrs. How long will it take to fly 6400 km?

Answer 1

Answer:

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Step-by-step explanation:

13. GIVEN -

NUMBER OF CHILDREN IN THE HOSTEL - 800

FOOD DURATION FOR 800 CHILDREN- 60 DAYS

NUMBER OF NEW CHILDREN JOINED - 400

we will calculate the answer using proportion.

so -

let the number of days the food will last, be X

800 * 60 = 1200 * X

X = 40 days

14. GIVEN -

DISTANCE THAT THE AEROPLANE FLY - 1600KM

TIME TAKEN TO COVER THE DISTANCE - 2 HRS

we will use proportion again to solve this question

let the number of of hours to be taken in the journey of 6400 km, be X

1600: 2 :: 6400 :X

1600 * X = 6400 * 2

X = 8 hrs.

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