Which of the following Pair are not parent and child who have both won the Nobel prize?

Who is the first women boxer to be honoured with the Rajiv Gandhi Khel Ratna Award?

Which is the only Test playing nation that India has never beaten in T20 International ?

Who was the first women nominated member of Rajya Sabha of India?

Which Nobel laureate began his career as an accountant in the finance department of the Indian government in Calcutta?

Mitrabheda, Mitralabha, Kakolukiyam, Labdhapranash and Apariksitakarakam are different chapters of which ancient text?

Which of these does not hold true for mammals?

After Jyoti Basu, who has held the office of chief minister for any Indian state for the longest time?

Which of these Indian Para-athletes won the gold medal in high jump at the Rio Paralympic Games ?

At Rio 2016, who made the record for the fastest goal scored in football in Olympics by scoring a goal in 14 seconds?

Answer: x*y = 5 as x=5 and y = 1

3^(x-y) = 81 = 3^4 or (-3)^4 in either case x-y = 4 -- (i)

Similarly, 3^(x+y) = 729 = 3^6 or (-3)^6 in either case

x+y = 6 - (ii)

Solving (i) and (ii) x =5 and y =1

x, y, z and k are four non zero positive integers satisfying 1/x + y/2 = z/3 + 4/k, minimum integral value of k for integral value of x, y and z will be

x and y are distinct 2 digit numbers such that y is obtained by reversing the digits of x. Suppose they also satisfy x^2 - y^2 = m^2 for some positive integer m, then find the value of x+y+m?