A pen passing through two hands is finally sold at a profit of 44% of the original cost price. If the first dealer makes a profit of 20%, then the profit made by the second dealer is:

In 80 litres mixture of milk and water the ratio of amount of milk to that of amount of water is 7: 3. In order to make this ratio 2: 1, how many litres of water should be added?

Table below shows the number of candidates appearing for the interview and the percentage of candidates found eligible for the post in various companies (A, B, C, D, E, F).
Study the Tables and give answer the following Questions.

How many qualified candidates are there in Company F?

The marked price of an item was ₹5,000. While selling the item, the seller offered successive discounts of 15% and 5%. What was the final selling price of the item?

Direction: Study the following information carefully and answer the questions given below.
 25% of the boys and 60% of the girls from a college participated in an event. The total number of girls in the college is equal to the number of boys, who do not participate in the event.

The number of girls, who participated in the event is what percent more than the number of boys, who participated in the event?

If the diagonals of a rhombus are 24cm and 10cm, then the perimeter of the rhombus is ___________.

What is the degree of the differential equation $$y=x\left({dy\over dx} \right)^2+ \left({dx\over dy} \right)^2 ? $$

If the square root of 841 is 29, then square root of 0.00000841 is equal to: