Question
Consider the below statements and identify the correct
answer. Statement I: Dobereiner gave the law of triads. Statement II: Dobereiner tried to arrange the elements with different properties into groups, having three elements each.Solution
The correct answer is B
A man bought 18 glasses for Rs.12 and sold 12 glasses for Rs 18. What is the profit percent?
If by selling an article for Rs. 480 a shopkeeper gains 20%, find its cost.Β Β
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