Question

do it fast.........​

Answer 1

Answer:

let kajal's age = x

cousin's age = x + 16

after 5 years

kajal = x + 5

cousin = x + 21

......................

x+5 / x + 21 = 1 : 3

3x + 15 = x + 21

3x - x = 21 - 15

2x = 6

x = 6/2

x= 3

Step-by-step explanation:

Answer 2

Answer:

The Wright brothers invented and flew the first airplane in 1903, recognized as "the first sustained and controlled heavier-than-air powered flight". ... Airplanes had a presence in all the major battles of World War II. The first jet aircraft was the German Heinkel He 178 in 1939.

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