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Case (1) when student attempted 1 question from one section and from another, he attempted 3 questions Number of ways = 6C1 × 6C3 = 6 × 20 = 120 Case (2) when student attempted 2 questions from one section and from another, he attempted 2 questions Number of ways = 6C2 × 6C2 = 15 × 15 = 225 Case (3) when student attempted 3 questions from one section and from another, he attempted 1 question Number of ways = 6C1 × 6C3 = 6 × 20 = 120 N = 120 + 225 + 120 = 465 Required value = 465 – 64 =401
If “ A * B $ C & D % B ”, then How D is related to A?
There are seven members (D, E, F, G, I, K and H) in a family. H is the daughter of F’s brother. K is the father of D. I is the mother of K. G is fathe...
'A + B' means 'A is the father of B'. 'A - B' means 'A is the son of B'. 'A ÷ B' means 'A is the daughter of B'. 'A X B' means 'A is married to B'. In ...
If ‘P × Q’ mean ‘Q is the sister of P’, ‘P + Q’ means ‘Q is the daughter of P’ , ‘P ÷ Q’ means ‘P is the wife of Q’, and ‘P-...
How is M related to O?
If A # B means ‘A is the father of B’, A $ B means ‘A is the brother of B’, A % B means ‘A is the son of B’, A & B means ‘A is the sister ...
D is the grandmother of _____.
How is J related to H?
How is J related to Q?
How is G related to the wife of L?