For qualifications 2/5 of the marks were given for corsework. The rest of the marks were given for a written paper of which 3/8 were given for a mental test Total marks were out of 120. How many marks were given for the mental test.

For qualifications 2/5 of the marks were given for corsework. The rest of the marks were given for a written paper of which 3/8 were given for a mental test Total marks were out of 120. How many marks were given for the mental test.

Explanation
Step 1: Find marks for coursework
Marks for coursework=2/5×120=48.
Step 2: Find marks for the written paper

Marks for written paper=12048=72.

Step 3: Find marks for the mental test

The mental test is 38frac{3}{8} of the marks for the written paper:

Marks for a mental test

=3/8×72

=27.