There is a question in physics paper from friction. Answer to that question must be 23.3 kg but no option is correct answer to this question
Actually that question is right. Read the question again, there is written ' minimum mass ' so the minimum mass can only be be 27.3 kgs. So, don't waste your money in challenging that question.
IF the correct answer was not available their then you will get a bonus, dont panic.
all the best.
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