• question_answer 12 balls cost Rs. 15. How many can be brought for Rs. 20 ?  A) 15 balls            B) 16 ballsC) 17 balls            D) 18 balls

Correct Answer: B

Solution :

For Rs. 15 number of balls brought = 12 For Rs. 20 number of balls can be brought $=$$\frac{12\times 20}{15}$ $=16\,\,balls$

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