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Discussion OF sample paper-1 Q.1 to Q.10

In a test paper there are 10 questions . Number of ways in which 6 questions to be answered is

The cost of 4 dozen papers is Rs.24. The cost of 1 score of papers (in rupees) is..40b.20c.10d.42

long piece of paper is10 cm wide and is moving uniformly along its length with a velocity of 2 cm//s . An ant starts moving on the paper from point A and moves uniformly with respect to the paper. A spider was located exactly opposite to the ant just outside the paper at point B at the instant the ant started to move on the paper. The spider, without moving itself, was able to grab the ant 5 second after it (the ant) started to move. Find the speed of ant relative to the paper.

There are 10 true - false statements in a question paper. How many sequences of answers are possible ?

A circle with radius 10 cm is drawn somewhere on a rectangular piece of paper of dimensions 40 cm xx 30 cm. This paper is kept horizontally on table top and a point is marked on the rectangular paper without seeing towards it. Find the probability that it will marked outside the circle. ("Take "pi=(22)/(7))

In a city of 5000 families. It was found the 40% families read news paper A, 20% families read news paper B and 10% families read news paper C, 5% families read news paper A and B both, 3% read news paper B and C both, 4% read news paper A and C both. If 2% families read all three news paper A,B,C find the number of families who reads none of the newspaper A,B and C

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