At the beginning of the year, 1/2 of the seniors at a high school signed up for the debate club. by the end of the year, 7 of the seniors had to quit due to other commitments, leaving 18 members in the club. how many seniors are there at the high school?

There are 50 seniors in the school.

Step-by-step explanation:

Let the number of seniors in the school = x

It is given that, 'Initially of the seniors signed up for the club'.

So, the number of seniors in the club =

Further, 7 seniors left the club at the end of the year and total 18 people were left in the club.

So, we get the relation,

i.e.

i.e.

i.e. x= 25 × 2

i.e. x = 50

Thus, there are 50 seniors in the school.

50

Step-by-step explanation:

Let the initial number of the senior member at a high school = x

According to the question,

The senior member who signed up for the debate club =

Thus, When 7 of the seniors had to quit the club, then the remaining number of senior members =

Again according to the question,

Hence, There are 50 senior members at the high school.

step-by-step explanation:

107 units