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A fair die is thrown 5 times. What is the probability of getting point 1 on exactly 3 of the 5 throws? Give your answer as a decimal number, with 4 decimal places.

In ABCD and DBCE are two trapeziums. BC=6 cm and AD= 4 cm . The ratio of the areas of trapezium ABCD and DBCE is 5:8. Show that the ratio of the areas of Trapezium ABCE and ABCD is 2:1.

In triangle ABC, B=90ยบ and BC=16 cm . M and N are the mid-points of AB and AC respectively . If triangle ABC= 64 cm2 , find the area of the quadrilateral MBCN.

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