Std 10 Vignan paper

If the best and the worst paper never appear together, find in how many ways six examination papers can be arranged.

Apples are generally wrapped in waxed paper to

Apples are generally wrapped in waxed paper to

A dot marked on a paper represents a point.

In how many ways can 10 examination papers be arranged so that the best and worst papers never come together?

A man is trying to start a fire by focusing sunlight on a piece of paper using an equiconvex lens of focal length 10 cm . The diameter of the sun is 1.39 xx 10^(9) m and the diameter of the sun's image on the paper is

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 boy is trying to start a fire by focusing sunlight on a piece of paper using an equiconvex lens of focal length 10cm . The diameter of the sun is 1.39xx10^(9)m and its mean distance from the earth is 1.5xx10^(11)m . What is the diameter of the sun's image on the paper ?

Plot the points A(10 ,\ 50),\ B(15 ,\ 20),\ C\ (40 ,\ 10)a n d\ D\ (60 ,\ 80) on the graph 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.