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1. In a quiz, positive marks …

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1. In a quiz, positive marks are given for correct answers and negative marks are given for incorrect answers. If Jack’s scores in five successive rounds were 25, – 5, – 10, 15 and 10,What was the total at the end? 2. At Srinagar temperature was – 5°C on Monday and then it dropped by 2°C on Tuesday. What was the temperature of Srinagar on Tuesday? On Wednesday, it rose by 4°C. What was the temperature on this day? 3. A plane is flying at the height of 5000 m above the sea level. At a particular point, it is exactly above a submarine floating 1200 m below the sea level. What is the vertical distance between them? 4. Mohan deposits ` 2,000 in his bank account and withdraws 1,642Rs from it, the next day. If withdrawal of amount from the account is represented by a negative integer, then how will you represent the amount deposited? Find the balance in Mohan’s account after the withdrawal. 5. Rita goes 20 km towards east from a point A to the point B. From B, she moves 30 km towards west along the same road. If the distance towards east is represented by a positive integer then, how will you represent the distance travelled towards west? By which integer will you represent her final position from A? 6. Water tank has steps inside it. A monkey is sitting on the topmost step (i.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. In how many jumps will he reach the water level? (ii) 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? (iii) If the number of steps moved down is represented by negative integers and the number of steps moved up by positive integers, represent his moves in part (i) and (ii) by completing the following; (a) – 3 + 2 – ... = – 8 (b) 4 – 2 + ... = 8. In (a) the sum (– 8) represents going down by eight steps. So, what will the sum 8 in (b) represent? 7. Verify a – (– b) = a + b for the following values of a and b. (i) a = 21, b = 18 (ii) a = 118, b = 125 (iii) a = 75, b = 84 (iv) a = 28, b = 11 8. (-2)x(-2)x(-2) = 9. By how much does 8 exceed -4? 10.Start with the integer -8. Add -12 to it, subtract 10 from the result. Divide the result by 3 and multiply the result by -2. What do you get?
  • 5 answers

Ravneet Kaur 2 years, 9 months ago

https://youtu.be/kM58NzlXWRI

Soumesh Panda 2 years, 9 months ago

Give one question at a time.!!!!

Abdul Aziz 2 years, 9 months ago

s

Amit Khemasara 2 years, 9 months ago

1 . 35 2. -7°C and -3°C 3. 4200

Riya Yadav 2 years, 9 months ago

It's a question or ramayan,????
http://mycbseguide.com/examin8/

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