{"id":9399,"date":"2021-04-07T16:57:34","date_gmt":"2021-04-07T11:27:34","guid":{"rendered":"https:\/\/apboardsolutions.guru\/?p=9399"},"modified":"2021-09-15T11:38:20","modified_gmt":"2021-09-15T06:08:20","slug":"ap-board-7th-class-maths-solutions-chapter-1-ex-4","status":"publish","type":"post","link":"https:\/\/apboardsolutions.guru\/ap-board-7th-class-maths-solutions-chapter-1-ex-4\/","title":{"rendered":"AP Board 7th Class Maths Solutions Chapter 1 Integers Ex 4"},"content":{"rendered":"

AP State Syllabus AP Board 7th Class Maths Solutions<\/a> Chapter 1 Integers Ex 4 Textbook Questions and Answers.<\/p>\n

AP State Syllabus 7th Class Maths Solutions 1st Lesson Integers Exercise 4<\/h2>\n

\"AP<\/h2>\n

Question 1.
\nFill in the blanks.
\n(i) ( – 100) \u00d7 ( -6) =
\n(ii) ( – 3) \u00d7 …………. = 3
\n(iii) 100 \u00d7 ( – 6) = ………….
\n(iv) ( – 20) \u00d7 (- 10) = ………….
\n(v) 15 \u00d7 (-3) = ………….
\nSolution:
\n(i) ( – 100) \u00d7 ( -6) =
\n(ii) ( – 3) \u00d7 …………. = 3
\n(iii) 100 \u00d7 ( – 6) = ………….
\n(iv) ( – 20) \u00d7 (- 10) = ………….
\n(v) 15 \u00d7 (-3) = ………….<\/p>\n

Question 2.
\nFind each of the following products.
\n(i) 3 \u00d7 ( – 1)
\n(ii) ( – 1) \u00d7 225
\n(iii) ( – 2 ) \u00d7 ( – 30)
\n(iv) ( – 316) \u00d7 ( – 1)
\n(v) (-15) \u00d7 0 \u00d7 (-18)
\n(vi) (-12) \u00d7 (-11) \u00d7 (10)
\n(vii) 9 \u00d7 ( – 3) \u00d7 ( – 6)
\n(viii) ( – 18) \u00d7 ( – 5) \u00d7 ( – 4)
\n(ix) ( – 1) \u00d7 ( – 2) \u00d7 ( – 3) \u00d7 4
\n(x) ( – 3) \u00d7 ( – 6) \u00d7 ( – 2) \u00d7 ( – 1)
\nSolution:
\n(i) 3 \u00d7 ( – 1) = -3
\n(ii) ( – 1) \u00d7 225 = -225
\n(iii) ( – 2 ) \u00d7 ( – 30) = 630
\n(iv) ( – 316) \u00d7 ( – 1) = 316
\n(v) (-15) \u00d7 0 \u00d7 (-18) = 0
\n(vi) (-12) \u00d7 (-11) \u00d7 (10) = 1320
\n(vii) 9 \u00d7 ( – 3) \u00d7 ( – 6) = 162
\n(viii) ( – 18) \u00d7 ( – 5) \u00d7 ( – 4) = -360
\n(ix) ( – 1) \u00d7 ( – 2) \u00d7 ( – 3) \u00d7 4 = -24
\n(x) ( – 3) \u00d7 ( – 6) \u00d7 ( – 2) \u00d7 ( – 1) = 36<\/p>\n

\"AP<\/p>\n

Question 3.
\nA certain freezing process requires that room temperature be lowered from 40\u00b0C at the rate of 5\u00b0C every hour. What will be the room temperature 10 hours after the process begins?
\nSolution:
\nAt present, the room temperature 40\u00b0C
\nThe total decrease in temperature after 10 hours at the rate of 5\u00b0C a hour = 10 \u00d7 5 = 50\u00b0
\n\u2234 Temperature after 10 hours = 40\u00b0 – 50\u00b0 = – 10\u00b0C.<\/p>\n

Question 4.
\nIn a class test containing 10 questions, \u20183\u2019 marks are awarded for every correct answer and ( – 1) mark is for every incorrect answer and \u20180\u2019 for questions not attempted.
\n(i) Gopi gets 5 correct and 5 incorrect answers. What is his score?
\n(ii) Reshma gets 7 correct answers and 3 incorrect answers. What is her score?
\n(iii) Rashmi gets 3 correct and 4 incorrect answers out of seven questions she attempts. What is her score?
\nSolution:
\ni) GopI\u2019sscoe =5 \u00d7 3 + 5( – 1)= 15 + ( – 5) = 10
\nii) Reshmasscore = 7 \u00d7 3 + 3 \u00d7 ( – 1) = 21 +( – 3) = 18
\niii) Rashmis score = 3 \u00d7 3 + 4( – 1) = 9 + ( – 4) = 5<\/p>\n

\"AP<\/p>\n

Question 5.
\nA merchant on selling rice earns a profit of \u20b9 10 per bag of basmati rice sold and a loss of \u20b9 5 per bag of 1 non-basmati rice.
\n\"AP
\n(i) He sells 3,000 bags of basmati rice and 5,000 bags ofnon-basmati rice in a month. What is his profit or loss in a month?
\n(ii) What is the number of basinati rice bags he must sell to have neither profit nor loss, if the number of bags of non-basmati rice sold is 6,400.
\nSolution:
\ni) Profit on 3,000 bags of basmati rice = 3,000 \u00d7 10 = \u20b9 30,000
\nLoss on 5,000 bags of non-basmati rice = 5,000 \u00d7 5 = \u20b9 25,000
\nNet profit or loss = 30,000 – 25,000 = \u20b9 5000 profit
\nAnother Method : Net profit or loss = 3,000 \u00d7 10 + 5,000(-5)
\n= 30,000 – 25,000 = \u20b9 5,000<\/p>\n

ii) As there is no loss or gain
\nProfit on basmati rice= Loss on non-basmati rice
\nBut loss on nonbasrnati rice = 6,400 \u00d7 5 = \u20b9 32,000
\n\u2234 Number of bags of basmati rice sold = \\(\\frac{32,000}{10}\\) = 3200<\/p>\n

\"AP<\/p>\n

Question 6.
\nReplace the blank with an integer to make it a true statement.
\n(i) (- 3) \u00d7 ______________ = 27
\n(ii) 5 \u00d7 ______________ = – 35
\n(iii) _______ \u00d7 ( – 8) = – 56
\n(iv) _______ \u00d7 ( – 12) = 132
\nSolution:
\n(i) (- 3) \u00d7 -9 = 27
\n(ii) 5 \u00d7 -7 = – 35
\n(iii) 7 \u00d7 ( – 8) = – 56
\n(iv) 11 \u00d7 ( – 12) = 132<\/p>\n","protected":false},"excerpt":{"rendered":"

AP State Syllabus AP Board 7th Class Maths Solutions Chapter 1 Integers Ex 4 Textbook Questions and Answers. AP State Syllabus 7th Class Maths Solutions 1st Lesson Integers Exercise 4 Question 1. Fill in the blanks. (i) ( – 100) \u00d7 ( -6) = (ii) ( – 3) \u00d7 …………. = 3 (iii) 100 \u00d7 …<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[9],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/9399"}],"collection":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/comments?post=9399"}],"version-history":[{"count":0,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/9399\/revisions"}],"wp:attachment":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/media?parent=9399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/categories?post=9399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/tags?post=9399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}