Due to increase in the value of eggs by 20 percent, two eggs started getting less at Rs. 24. The current price per dozen of eggs.

The value of $$ {3sin30°-4sin^{3}30°}$$

The value of $$ {2(1-sin^{2}θ)}+{2(1-cos^{2}θ)}$$. 

$$ {3sin60°-4sin^{3}60°=?}$$

$$ {3tan^{2}30°}-{4\over 3}{sin^{2}60°}- {1\over2}{cosec^{2}45°}+{4\over3}{sin^{2}90°=?}$$

7 years ago, the ages of A and B were in the ratio of 4: 5 and after 7 years they would be in the ratio of 5: 6. The present age of B is-

A person sold a horse with a profit of 15 percent. If he had bought it for 25 percent less and sold it for less than 60 rupees, he would have gained 32 percent. The purchase price of the horse was.

There are two towers on a horizontal plane. The top of one tower makes an angle of 60 degrees from the horizontal on the original floor of the second tower. And the top of the second tower makes an angle of 30 degrees from the horizontal on the original floor of the first tower. Find the ratio of the height of the Towers.