Question

If half times of a number is subtracted
from twice of that number the answer we
will get is 10 more than the original num-
ber then that number is
(1) 4
(2) - 20
(3) - 4
(4) 20​

Answer 1

$given$

If  half times of a number is subtracted  from twice of that number the answer we  will get is 10 more than the original number

To Find :-

The number

Solution :-

Let the number be y

When half time subtracted from twice

$\bf 2y - \dfrac{y}{2}$

When 10 added

$\bf y +10$

$\sf 2y -\dfrac{y}{2} = y +10$

$\sf \dfrac{4y- y}{2}=y+10$

$\sf \dfrac{3y}{2} = y +10$

$\sf 3y = 2(10+y)$

$\sf 3y = 20 + 2y$

$\sf 3y-2y=20$

$\sf y =20$

Answer 2

Answer:

20

Step-by-step explanation:

the original number then number is 20

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