A jar full of whiskey contains 40% alcohol. A part of this whisky is replaced by another containing 19% alcohol. Now the percentage of alcohol was found to be 26%. The quantity of whisky replaced wa

Study the following table carefully and answer these questions

What is the percentage of candidates qualified from city B for all the years together, over the candidates appeared from city B during all the years together?

7, 24, 25 is a Pythagorean triplet. Therefore, the given triangle is a right angled triangle.In a right-angled triangle, the median to the hypotenuse is half the hypotenuse and is also the circum-radius of the triangle.As the hypotenuse is 25, the circum radius is 12.5

1080 = $2 3$ $\times$ $3 3$ $\times$ 5. For any perfect square, all the powers of the primes have to be even numbers. So, if the factor is of the form $2^ a$ $\times$ $3^ b$ $\times$$ 5^ c$ . The values 'a' can take are 0 and 2, b can take are 0 and 2, and c can take the value 0. Totally there are 4 possibilities. 1, 4, 9, and 36.

One year payment to the servant is Rs. 200 plus one shirt. The servant leaves the jobs after 9 months and receives Rs. 120 and a shirt. What is the price of the shirt?

In an examination it is required to get 40% of minimum marks to pass. A student got 142 marks, thus he got 22 marks more than minimum marks required to pass. What is the total marks?