1. Only one part of three parts among the total 70 students of a class 7 are present in one day of winter session. What part of students is absent?​

If your asking how much altogether for 12 performance the answer will be 98,496.

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.