Question
What structural model of DNA was proposed by Watson and
Crick in 1953?Solution
Watson and Crick proposed the "double helix" structure of DNA, which consists of two intertwined strands forming a spiral staircase-like structure.
The profit earned by selling an article for Rs. 7,000 is 2/5th the loss incurred on selling the same article for Rs. 4,500. Find the selling price of th...
An item is sold for a 12% profit. The marked price is Rs. 840. The reduction from the marked price to selling price equals 28% of the difference between...
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A shopkeeper sold two articles for Rs. 3588 each. One article is sold at a profit of 15% while another one is sold at a loss of 20%. What will be the su...
A trader marked an article 35% above its cost price and sold it after allowing a discount of 20%. If the transaction resulted in a profit of Rs. 34, the...
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The ratio between the marked price and the cost price of an article is 5 : 3. If the selling price of the article is ₹84 and the shopkeeper gave two s...
A merchant combines two kinds of pulses, labeled 'P' and 'Q'. The purchase prices for type 'P' and 'Q' are Rs. 80 per kg and Rs. 108 per kg, respectivel...
If 15 buttons are bought at Rs 1 and sold at the rate of 10 buttons at Rs 1, what will be the percentage profit?
A shopkeeper bought two articles for Rs. 200 each. If he sold one of them at 40% profit and the other at 25% loss, then find the difference between the ...
