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The number of integral solutions of x^2 − 10x + 21 ≤ 0 and x^2 − 4x > 0 is

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The number of integral solutions of x2 − 10x + 21 ≤ 0 and x2 − 4x > 0 is 

(1) 3 

(2) 4 

(3) 2 

(4) infinite

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1 Answer

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Best answer

Correct option (1) 3

Explanation: 

The integers satisfying both the conditions are 5, 6, 7 and hence 3 solutions.

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