What happens as we go down the group in the periodic table?

Find the L.C.M of 4/5, 2/3 and 5/7.

Complete the series given in the Problem figure with an appropriate option from the Answer figures.

Who is the only Indian economist to have won the Nobel prize?

If a body takes 't' seconds to go once round the circular path of radius 'r', the velocity 'v' is given by

Consider the given argument and decide which of the given assumptions is (are) implicit.

Argument :

Due to water crisis in the city, the authority had asked all the citizens to reduce their water consumption by 25%.

Assumptions:

1. Many citizens may reduce their water consumption.
2. Many activists may protest to this advisory by the authority.

If a-1a=1, then a2 + 1a2 ?

When x2+ax+b is divided by (x-1), the remainder is 15 and when x2+bx+a is divided by (x+1), the remainder is -1, then the value of a2+b2 is