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RAILWAY SENIOR SECONDARY SCHOOL CBSE ERODE, , , , , , , , , , , , , , , , , , , , , , , , , , CLASS:7. MATHEMATICS., TERM-1 EXAMINATION MARKS :80 TIME:3.00 HRS, Q PART-A (20 X1 = 20) ANSWER ALL THE QUESTIONS M, 1 2, , Fill it : -11,-8,-5,-2, —_, 2 Replace the blank with an integer to make it a true statement. 4, (a) (-3)x____=27 (b) 5x___ =-35, () x (-8) = —56 (@ x (-12) = 132, 3. | Fillintheblanks: 4, (a) 369+ = 369 (b) (75) + =-1, (c) (206) + =1 (d) —87+ = 87, 4 | Expand: 1, aX (b+ c)=., 5 5, 4, 6, 7,5, 3, 5,4, 5, 2, 6, 2,5, 1,9, 6,5, 8, 4, 6,7, (i) Whichnumber isthe highest? (ii) Which number is the lowest:, (ii) What is the range of the data? (iv) Find the arithmetic mean., © | Find the mode of the numbers: 2, 25.2) 3439459599950, 018 1, 7 : : : 7, Find the median of the data: 24, 36, 46, 17, 18, 25, 35, 8 a rrr 2, 1, Write equations for the following statements:, () Thesumofnumbersxand4is9. (i) 2subtracted from y is 8., , , , , , , , QB Ecit with wes office
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PART-B (9 X2 = 18) ANSWER ALL THE QUESTIONS, , , , , , Use the sign of >, < or= in the box to make the statements true., , , , (a) (-8) +4) LJ] ©8-C4, (b) (3) +7-(19) 15-8 + (9),, 7 ,2,3, —$ +-_— — —, , Solve: 10 5 2, , , , Multiply and reduce to lowest form and convert into a mixed fraction: 7 5, , , , 123, , Find:, , , , , , In words ‘Convert the following equations in statement form:, (i) x-5=9 i) Sp =20 Each 1 mark, , , , , , Tell whether the statementis true or false:, (i) The mode is always one of the numbers in a data., (ii) The mean is one of the numbers in a data., , , , , , (ii) The median is always one of the numbers in a data., (iv) The data 6, 4, 3, 8,9, 12, 13, 9 has mean 9., , , , Complete the last column of the table., , , , , , , , S. | Equation Value Say, whether the Equation, , No. is Satisfied. (Yes/ No), @ x+3=0 rs, , G | «+3=0 x= 0, , , , , , , , , , , , , , , , , , , , Setup an Equation in the following case:Laxmi's father is 49 years old, he is 4 years, older than three times Laxmi 's age take (Take Laxmi's age to be y years), , , , (Eat with wes office
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PART-C (3 X4 = 12) ANSWER ALL THE QUESTIONS, , , , (a) White a pair of negative integers whose difference gives 8., (b) Write a negative integer and a positive integer whose sum is-5., , (c) Write a negative integer anda positive integer whose difference is -3., , , , , , Avehicle covers a distance of 43.2 km in 2.4 litres of petrol, How much distance will, itcover in one litre of petrol?, , , , The runs scored in a cricket match by 11 players is as follows:, 6, 15, 120, 50,100, 80, 10, 15, 8,10, 15, Find the mean, mode and median of this data, Are the three same?, , , , , , , , , , , , PART-C (5 X 6 = 30) ANSWER ALL THE QUESTIONS, , , , Arrange the following in descending order:, , , 22 8 :, @) 9°3° 1 Ascending order, , , , , , A water tank has steps inside it. A monkey is sitting on the topmost step (1.e., the first, step). The water level is at the ninth step., (i) He jumps 3 steps down and then jumps back 2 steps up., Inhow many jumps will he reach the water level?, , i) After drinking water, he wants to go back. For this, he, jumps 4 steps up and then jumps back 2 steps down, in every move. In how many jumps will he reach back, the top step?, , , , , , @ Edit with WPS Office
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Number of books, , , , , , 1, Use the bar graph (Fig 3.3) to answer the following questions., (a) Whichisthe mostpopularpet? (b) How many students have dog asa pet?, , Pets owned by students, of class seven, , , , , , oe., 10, wn, Ss 8, o6, oF, a4, mm”, c an 2, wn an = 2 2, & 8S 2 2 2, =! r=!, s, ne, Pet animals, Fig 3.3, 600 Scale: 1 unit = 100 books, 500 —, 400, <, 300 = s, S, 200 = =, Ss a, 100- = & = 3, o- :, Years, Fig 3.4, , , , (Eat with wes office
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2. Read the bar graph (Fig 3.4) which shows the number of books sold by a bookstore, during five consecutive years and answer the following questions:, , (i) About how many books were sold in 1989? 1990? 1992?, (i) Inwhich year were about 475 books sold? About 225 books sold?, , (ii) In which years were fewer than 250 books sold?, (iv) Can you explain how you would estimate the number of books sold in 1989, , , , , , , , , , , , GRAPH ‘Two hundred students of 6" and 7" classes were asked to name their, , SHEET /” favourite colour so as to decide upon what should be the colour of their, school building. The results are shown in the following table. Represent, the given data ona bar graph., , , , Favourite Colour Red | Green| Blue | Yellow | Orange, Number of Students B 19 55 49 34, , , , , , , , , , , , , , , , , , , , Answer the following questions with the help of the bar graph:, (i) Which is the most preferred colour and which is the least preferred?, , (ii) How many colours are there in all? What are they?, , , , There are 6 marbles ina box with numbers from | to 6 marked on each of them., (i) Whatis the probability of drawing amarble with number 2?, (i) Whatis the probability of drawing amarble with number 5?, , , , (Eat with wes office
