Question

Directions (Q.61 -65): In how many ways 5 History books and 7 geography books can be arranged in a row so that :

History books are always together and also Geography books are always together?

A 5! × 7! ×2! Correct Answer Incorrect Answer
B 5! × 6! × 2! Correct Answer Incorrect Answer
C 6! × 7! × 2! Correct Answer Incorrect Answer
D 5! × 7! × 3! Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

Reqd. no. of ways = 5! 7! 2!

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