48 pupils are there in the computer class.
Step-by-step explanation:
Total girls = 6 from primary and 6 from not primary club = total 12 girls
Girls = 1- 3/4 = 1/4 = 12
Boys = 12× 3 = 36 boys
Total = girls + boys
= 12 + 36 = 48 pupils are there in the computer class.
