30 marks to be alloted to 8 questions. Each question has to be given ≥2 marks Let questions be a,b,c,d,e,f,g,h and a+b+c+d+e+f+g+h=30 Let a=a1+2 so, a1≥0 b=a2+2 so, a2≥0,......,a8≥0 So, a1+a2+......+a8 +2+2+. . . . .+2}=30 ⇒a1+a2+......+a8=30−16=14 So, this is a problem of distributing 14 articles in 8 groups. Number of ways =14+8−1C8−1=21C7