Std 7 Hindi Paper Solution Ekam Kasoti February 2022

Sarita secured 84% marks in Hindi paper.If the maximum marks in the paper are 150, find the marks secured by her in the paper.

A blue litmus paper was first dipped in dil. HCl and then in dil. NaOH solution. It was observed that the color of litmus paper

A blue litmus paper was first dipped in dil .HCl and then in dil .NaOH solution .It was observed that the colour of the litmus paper

Sarita secures 84% marks in hindi paper.If the maximum marks in the paper are 150 find the marks secured by her in the paper.

When the strip of pH paper was put in a given solution the pH paper changes to orange red. The given solution is most likely to be of:

In a hostel 60% of the students read Hindi news paper, 40% read English newspaper and 20% read both Hindi and English newspapers. A student is selected at random.Find the probability that she reads neither Hindi nor English news paper ?

In a hostel 60% of the students read Hindi news paper, 40% read English news paper and 20% read both Hindi and English news papers. A student is selected at random. (a) Find the probability that she reads neither Hindi nor English news papers. (b) If she reads Hindi news paper, find the probability that she reads English news paper. (c) If she reads English news paper, find the probability that she reads Hindi news paper.