I have requested for the video solution for some questions of my snap test series. Where i can get it????

they will attach it under the question itself if there is enough demand for it.

I scored 252 in NMAT this year. Should I appear for a reattempt?

Look, as long as all your sectional scores are above 75, then you should be completely safe for even Mumbai. Only if one section has a score lower than 70, and you know that you can get it up by 10-15 marks at the the very least, you should give a retake. Otherwise, just wait for a call from NMIMS Mumbai.

A shopkeeper gives a discount of 10% once in 4 months. If a man purchases an article in this scheme for Rs.25515 in December, then what was the initial price in January?

In a year there are three quarters over which the price has decreased. So you just have to assume the initial value to be "x". Then decrease it by 10% three times. That would be: x(0.9)(0.9)(0.9) x(0.9)^3 x( 0.729)=25515 x=35000