_______________________________________ARMY PUBLIC SCHOOL, DEHUROAD HALF-YEARLY EXAM …

_______________________________________ARMY PUBLIC SCHOOL, DEHUROAD HALF-YEARLY EXAM (2020 -21) CLASS: VIII TIME: 2HOURS SUBJECT: MATHEMATICS MARKS: 40_ Q-1. The product of two rational numbers is 15 56 . If one of the numbers is − 5 48 , find the other. (2M) Q-2. The two numbers are in the ratio 4:3. If they differ by 18, find these numbers. (2M) Q-3. The opposite angles of a parallelogram are (3x + 5)0 and (61 – x)0 . Find the measure of all four angles of a parallelogram. (2M) Q-4. The area of a rectangular field whose length is twice its breadth is 2450 m2 . Find the perimeter of the field. (2M) Q-5. Rohit’s mother gave him Rs.4xy2 and his father gave him Rs. (5xy2 + 3). Out of this total money he spends Rs. (10 – 3xy2 ) on his birthday party. How much money is left with him? (2M) Q-6. If B = 7, A = 4 and E = 3, find the values of L, S, M and G from the given addition problem: (2M) B A S E + B A L L G A M E S Q-7. Solve the following Linear Equation: (3M) ?+1 2?+3 = 3 8 Q-8. When three coins are tossed simultaneously, what are all the possible outcomes? What is the probability of getting: (3M) (a) All tails (b) At least one head Q-9. Find the smallest whole number by which 1008 should be multiplied so as to get a perfect square number. Also, find the square root of the square number so obtained. (3M) Q-10. Find the value of P if : (3M) ( 2 5 ) 3 × ( 2 5 ) 6 = ( 2 5 ) 2P-1 Q-11. In the following figure of a ship, ABDH and CEFG are two parallelograms. Find the value of x, ∠ A and ∠ E. (4M)

A rational number is such that when you multiply it by 5/2 and add2/3 to the product you get -7/12 find the number

Find examples from your surroundings where lines insect set at right angle

A streamer goes down stream from one point to another in 7 hours it covers the same distance upstream in 8 hours if the speed of the streamer is 2km/hr find the speed of the streamer in still water and the distance between the point

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2x+5= 10

Pythagoras theoram ???

Find the measures of the angles made by the intersecting lines at the vertices of an equivalent triangle

Convert the following ratio to percentage 3:4

Class 8th ex .5.1