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ICSE Class X Prelims 2020 : Mathematics (Karnataka ICSE Schools Association KISA, Bengaluru)

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KARNATAKA ICSE SCHOOLS ASSOCIATION PREPARATORY EXAMINATION - JANUARY 2020 Class: X Duration: 2 hours Subject: Mathematics Max. Marks: 80 Date : 13/01/2020 ---------------------------------------------------------------------------------------------------------Instructions Answers of this Paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper. The time given at the head of this Paper is the time allowed for writing the answers. -----------------------------------------------------------------------------------------------------------Attempt all questions from Section A and any four questions from Section B. All working, including rough work, must be clearly shown and must be done on the same sheet as the rest of the answer. Omission of essential working will result in loss of marks. The intended marks for questions or parts of questions are given in brackets [ ]. Mathematical tables are provided. ---------------------------------------------------------------------------------------------------Section A [ 40 marks] Question 1 (a) Using remainder and factor theorem, factorise the following polynomial: 3 19 + 30 [3] (b) A well of diameter 3 m is dug 14 m deep. The earth taken out of it has been spread evenly all around it in the shape of a circular ring of width 4 m to form an embankment. Find the height of the embankment. [3] (c) In the adjoining figure, ABCD is a parallelogram. E is a point on AB. CE intersects the diagonal BD at G and EF is parallel to BC. If AE EB = 1: 2, find (i) EF AD (ii) area of BEF area of ABD [4]

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