( 1 ) What is the sum of first ten positive and first ten negative integers?
( 2 ) Divide 324 by (-27)
( 3 ) Divide (-256) by (-16)
( 4 ) The product of two integers is 729. If one of the integer is (-27), find the other
integer.
( 5 ) What will be the quotient if (-15625) is divided by (-125)?
( 6 ) A Man drives his car at the speed of 60km/h. How long will it take to cover 900 km?
( 7 ) Arrange the following in increasing order. -2, 9, 7, -6,5, 0, -3
( 8 ) Simplify 510 - [270 - (90 - 80+70)].
( 9 ) An elevator descends into a mine shaft at the rate of 8m/min. If it starts from 13m above the ground level, how long will it take to reach 115m below ground
level?
( 10 ) Determine the integer whose product with -17 is - 425.
( 11 ) A class test contains 15 questions. Students are awarded +4 marks for each
correct answer,-2 marks for each incorrect answer and -1 mark for question not attempted. Amit gets 6 correct and 5 incorrect answers. What is his score?
( 12 ) Find the product of first four odd negative integers?
( 13 ) Temperature of a hill station is +5°C. If the temperature falls down by 3°C everyhour, what will be the temperature after 4 hours?
( 14 ) What is the multiplicative inverse of (-150 +85)?
( 15 ) If the sum of two integers is -1600 and one of them is 549, find the other number.
( 16 ) The temperature at a certain place was 9°C above zero at 11:00 am. If it decreases at the rate of 3°C per hour until midnight, at what time would the temperature be 6°C below zero?
( 17 ) Garvit earns a profit of 2 by selling one pen and suffers a loss of 50 paisa by selling one pencil. One day, Garvit earns a profit of 10. If he sold 15 pens then how many pencils did he sell?
( 18 ) An aero plane was flying at a height of 2100m. If it descends at a constant rate of
40m per minute, how long will it take to descend to a height of 300m?
Answers
Step-by-step explanation:
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Answer:
( 14 ) What is the multiplicative inverse of (-150 +85)?
( 15 ) If the sum of two integers is -1600 and one of them is 549, find the other number.
( 16 ) The temperature at a certain place was 9°C above zero at 11:00 am. If it decreases at the rate of 3°C per hour until midnight, at what time would the temperature be 6°C below zero?
( 17 ) Garvit earns a profit of 2 by selling one pen and suffers a loss of 50 paisa by selling one pencil. One day, Garvit earns a profit of 10. If he sold 15 pens then how many pencils did he sell?
( 18 ) An aero plane was flying at a height of 2100m. If it descends at a constant rate of
40m per minute, how long will it take to descend to a height of 300m?