Question

find a number which which added to its half give 42​

Answer 1

let number be x

according to the question -

x +1/2x = 42

=> x +x/2 = 42

=> 2x+x = 42

2

=> 3x/2 = 42

=> 3x = 42×2 = 84

=> x = 84/3 = 28

.......

hence the number is 28

Answer 2

$\huge\star{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}⋆$

Let the number be x and its half be x/2.

The equation will be, x + x/2 = 72

2x + x / 2 = 42

2x + x = 42 × 2

3x = 84

x = 84/3

x = 28

Hence, the number is 28.

Let us verify

28 + 28/2 = 42

28 + 14 = 42

42 = 42.