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Countdown Class 4 Third Edition Chapter # 1 Solution Word Problems 2

Student at punjab university lahore Ă  Adil Aslam
14 Apr 2020‱‱
Countdown Class 4 Third Edition Chapter # 1 Solution Word Problems 2
Countdown Class 4 Third Edition Chapter # 1 Solution Word Problems 2
Countdown Class 4 Third Edition Chapter # 1 Solution Word Problems 2
Countdown Class 4 Third Edition Chapter # 1 Solution Word Problems 2
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Countdown Class 4 Third Edition Chapter # 1 Solution Word Problems 2
Countdown Class 4 Third Edition Chapter # 1 Solution Word Problems 2
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Countdown Class 4 Third Edition Chapter # 1 Solution Word Problems 2

  1. ï‚Ż đđźđŠđ›đžđ«đŹ 𝐚𝐧𝐝 đ€đ«đąđ­đĄđŠđžđ­đąđœ đŽđ©đžđ«đšđ­đąđšđ§đŹ ï‚Ż Countdown Mathematics Class 4 Third Edition đ‚đĄđšđ©đ­đžđ« # 𝟏 đ–đšđ«đ đđ«đšđ›đ„đžđŠđŹ
  2. 𝐍𝐹𝐭𝐞𝐬 𝐁đČ: Adil Aslam 𝐒𝐼𝐛𝐣𝐞𝐜𝐭: Mathematics Class 4 1 | P a g e 𝐌đČ đ„đŠđšđąđ„ đ€đđđ«đžđŹđŹ: đšđđąđ„đšđŹđ„đšđŠđŸ“đŸ—đŸ“đŸ—@đ đŠđšđąđ„. 𝐜𝐹𝐩 đ–đšđ«đ đđ«đšđ›đ„đžđŠđŹ đđšđšđ€ 𝐏𝐚𝐠𝐞 # 𝟏𝟔 𝐍𝐹𝐭𝐞: đ’đšđ„đŻđž đšđ„đ„ đȘ𝐼𝐞𝐬𝐭𝐱𝐹𝐧𝐬 𝐹𝐧 đČđšđźđ« 𝐧𝐹𝐭𝐞 đ›đšđšđ€. đđ„đžđšđŹđž 𝐝𝐹 đšđ„đ„ đ°đšđ«đ€ 𝐧𝐞𝐚𝐭 𝐚𝐧𝐝 đœđ„đžđšđ§. đ’đšđ„đŻđž 𝐭𝐡𝐞 đ©đ«đšđ›đ„đžđŠđŹ, đ°đ«đąđ­đąđ§đ  đœđšđŠđ©đ„đžđ­đž 𝐬𝐭𝐚𝐭𝐞𝐩𝐞𝐧𝐭𝐬. 𝟏. 𝐀 đ„đžđšđ€đąđ§đ  đ­đšđ© 𝐰𝐚𝐬𝐭𝐞𝐬 𝟑𝟕𝟓𝟎 𝒎𝒍 𝐹𝐟 đ°đšđ­đžđ« 𝐱𝐧 𝟏 đĄđšđźđ«. 𝐇𝐹𝐰 𝐩𝐼𝐜𝐡 đ°đšđ­đžđ« đ°đąđ„đ„ 𝐛𝐞 𝐰𝐚𝐬𝐭𝐞𝐝 𝐱𝐧 𝐚 𝐝𝐚đČ? đ’đšđ„đźđ­đąđšđ§: Water wasted in 1 hour = 3750 𝑚𝑙 We know that one day = 24 hours Water wasted in 24 hours = 3750 × 24 Thus water wasted in 1 day = 90 000 𝑚𝑙 𝟐. 𝐑𝐞𝐡𝐚𝐧 𝐟𝐹𝐼𝐧𝐝 𝐹𝐼𝐭 𝐭𝐡𝐚𝐭 𝐡𝐞 𝐜𝐚𝐧 𝐬𝐚𝐯𝐞 𝟒𝟕𝟐𝟔 đŠđ„ 𝐹𝐟 đ°đšđ­đžđ« đžđŻđžđ«đČ 𝐝𝐚đČ 𝐛đČ 𝐧𝐹𝐭 đ„đžđšđŻđąđ§đ  𝐭𝐡𝐞 đ­đšđ© đšđ©đžđ§ đœđšđ§đ­đąđ§đźđšđźđŹđ„đČ, đđźđ«đąđ§đ  𝐡𝐱𝐬 𝐛𝐚𝐭𝐡. 𝐇𝐹𝐰 𝐩𝐼𝐜𝐡 đ°đšđ­đžđ« 𝐜𝐚𝐧 𝐛𝐞 𝐬𝐚𝐯𝐞𝐝 𝐱𝐧 𝟐𝟓 𝐝𝐚đČ𝐬 𝐱𝐧 𝐭𝐡𝐱𝐬 đŠđšđ§đ§đžđ«? 3 7 5 0 × 2 4 1 5 0 0 0 7 5 0 0 9 0 0 0 0 ×  
  3. 𝐍𝐹𝐭𝐞𝐬 𝐁đČ: Adil Aslam 𝐒𝐼𝐛𝐣𝐞𝐜𝐭: Mathematics Class 4 2 | P a g e 𝐌đČ đ„đŠđšđąđ„ đ€đđđ«đžđŹđŹ: đšđđąđ„đšđŹđ„đšđŠđŸ“đŸ—đŸ“đŸ—@đ đŠđšđąđ„. 𝐜𝐹𝐩 đ’đšđ„đźđ­đąđšđ§: Rehan save water 1 day = 4726 𝑚𝑙 Rehan save water in 25 days = 4726 × 25 Thus Rehan save water in 25 days = 118 150 𝑚𝑙 𝟑. đ“đĄđžđ«đž đšđ«đž 𝟏𝟒𝟒𝟎 𝐩𝐱𝐧𝐼𝐭𝐞𝐬 𝐱𝐧 𝐚 𝐝𝐚đČ. 𝐇𝐹𝐰 𝐩𝐚𝐧đČ 𝐩𝐱𝐧𝐼𝐭𝐞𝐬 đšđ«đž đ­đĄđžđ«đž 𝐱𝐧 𝟖 đ°đžđžđ€đŹ? đ’đšđ„đźđ­đąđšđ§: Minutes in day = 1440 We know that 8 week = 7 × 8 = 56 days Minutes in 56 days = 1440 × 56 Thus minutes in 8 weeks = 80 640 4 7 2 6 × 2 5 2 3 6 3 0 9 4 5 2 1 1 8 1 5 0 ×   1 4 4 0 × 5 6 8 6 4 0 7 2 0 0 8 0 6 4 0 ×
  4. 𝐍𝐹𝐭𝐞𝐬 𝐁đČ: Adil Aslam 𝐒𝐼𝐛𝐣𝐞𝐜𝐭: Mathematics Class 4 3 | P a g e 𝐌đČ đ„đŠđšđąđ„ đ€đđđ«đžđŹđŹ: đšđđąđ„đšđŹđ„đšđŠđŸ“đŸ—đŸ“đŸ—@đ đŠđšđąđ„. 𝐜𝐹𝐩 𝟒. đ“đĄđąđ«đ­đČ đœđĄđąđ„đđ«đžđ§ 𝐩𝐚𝐝𝐞 𝟓𝟐𝟖𝟎 đ©đšđ©đžđ« 𝐛𝐚𝐠𝐬. 𝐇𝐹𝐰 𝐩𝐚𝐧đČ 𝐝𝐱𝐝 𝐞𝐚𝐜𝐡 đœđĄđąđ„đ đŠđšđ€đž? đ’đšđ„đźđ­đąđšđ§: 30 children made paper bags = 5280 Each child make bags = 5280 Ă· 30 Thus each child make bags = 176 𝟓. 𝐇𝐹𝐰 𝐩𝐚𝐧đČ đ©đąđžđœđžđŹ 𝐹𝐟 đœđ„đšđ­đĄ 𝐜𝐚𝐧 𝐛𝐞 𝐜𝐼𝐭 đŸđ«đšđŠ 𝐚 𝟓 𝒎 đ„đžđ§đ đ­đĄ 𝐹𝐟 đœđ„đšđ­đĄ, 𝐱𝐟 𝐞𝐚𝐜𝐡 đ©đąđžđœđž 𝐱𝐬 𝟓𝟎 𝒄𝒎 đ„đšđ§đ ? đ’đšđ„đźđ­đąđšđ§: Total length of cloth = 5 𝑚 = 5 × 100 = 500 𝑐𝑚 Length of each piece = 50 𝑐𝑚 How many pieces can be cut out = 500 Ă· 50 Thus pieces can be cut out = 10 3 0 5 2 8 0 − 3 0 2 2 8 − 2 1 0 1 8 0 − 1 8 0 1 7 6 5 0 5 0 0 − 5 0  1 0 
  5. 𝐍𝐹𝐭𝐞𝐬 𝐁đČ: Adil Aslam 𝐒𝐼𝐛𝐣𝐞𝐜𝐭: Mathematics Class 4 4 | P a g e 𝐌đČ đ„đŠđšđąđ„ đ€đđđ«đžđŹđŹ: đšđđąđ„đšđŹđ„đšđŠđŸ“đŸ—đŸ“đŸ—@đ đŠđšđąđ„. 𝐜𝐹𝐩 𝟔. đ…đ«đšđŠ đŹđžđ«đŻđšđ„ đšđ«đœđĄđšđ«đđŹ, đđžđ„đąđœđąđšđźđŹ đšđ©đ©đ„đžđŹ đšđ«đž đ©đšđœđ€đžđ 𝐱𝐧 đ›đšđ±đžđŹ 𝐹𝐟 𝟕𝟐 𝐞𝐚𝐜𝐡. 𝐇𝐹𝐰 𝐩𝐚𝐧đČ đ›đšđ±đžđŹ đ°đąđ„đ„ 𝐛𝐞 đ«đžđȘđźđąđ«đžđ đŸđšđ« 𝟗𝟑𝟔 đšđ©đ©đ„đžđŹ? đ’đšđ„đźđ­đąđšđ§: Apples are packed in 1 box = 72 Total number of apples = 936 How many boxes will be required = 936 Ă· 72 Thus the number of boxes will be required = 13 𝟕. 𝐅𝐱𝐯𝐞 đđšđœđ­đšđ«đŹ đ­đ«đšđŻđžđ„ đŸđ«đšđŠ đŠđšđ«đšđœđĄđą 𝐭𝐹 đ‹đšđĄđšđ«đž 𝐭𝐹 𝐚𝐭𝐭𝐞𝐧𝐝 𝐚 đœđšđ§đŸđžđ«đžđ§đœđž. 𝐓𝐡𝐞 đ­đšđ­đšđ„ đ›đąđ„đ„ đŸđšđ« đ­đĄđžđąđ« đ­đ«đšđąđ§ đ­đąđœđ€đžđ­đŹ 𝐱𝐬 𝐑𝐬 𝟗𝟔𝟕𝟓. 𝐇𝐹𝐰 𝐩𝐼𝐜𝐡 𝐝𝐹𝐞𝐬 𝐞𝐚𝐜𝐡 đđšđœđ­đšđ« đ©đšđČ? đ’đšđ„đźđ­đąđšđ§: Total number of doctors = 5 Total bill for their train tickets = Rs 9675 How much each doctor pay = 9675 Ă· 5 7 2 9 3 6 − 7 2 2 1 6 − 2 1 6  1 3 5 9 6 7 5 − 5 4 6 − 4 5 1 7 − 1 5 2 5 − 2 5  1 9 3 5 Thus each doctor pay = Rs 1935
  6. 𝐍𝐹𝐭𝐞𝐬 𝐁đČ: Adil Aslam 𝐒𝐼𝐛𝐣𝐞𝐜𝐭: Mathematics Class 4 5 | P a g e 𝐌đČ đ„đŠđšđąđ„ đ€đđđ«đžđŹđŹ: đšđđąđ„đšđŹđ„đšđŠđŸ“đŸ—đŸ“đŸ—@đ đŠđšđąđ„. 𝐜𝐹𝐩 𝟖. 𝐇𝐹𝐰 𝐩𝐚𝐧đČ đĄđšđźđ«đŹ đšđ«đž đ­đĄđžđ«đž 𝐱𝐧 𝟐𝟕𝟎𝟎 𝐩𝐱𝐧𝐼𝐭𝐞𝐬? đ’đšđ„đźđ­đąđšđ§: Total number of minutes = 2700 We know 1 hour = 60 minutes Number of hours = 2700 Ă· 60 Thus number of hours = 45 𝟗. đ…đšđźđ« đŸđ«đąđžđ§đđŹ đŹđĄđšđ«đž 𝐚 đŸđ„đšđ­. đ“đĄđžđąđ« đ­đšđ­đšđ„ đžđ±đ©đžđ§đŹđžđŹ đŸđšđ« đ‰đšđ§đźđšđ«đČ đšđ«đž 𝐑𝐬 𝟗𝟐𝟓𝟔. 𝐇𝐹𝐰 𝐩𝐼𝐜𝐡 𝐩𝐹𝐧𝐞đČ 𝐩𝐼𝐬𝐭 𝐞𝐚𝐜𝐡 đŸđ«đąđžđ§đ đœđšđ§đ­đ«đąđ›đźđ­đž? đ’đšđ„đźđ­đąđšđ§: Total number of friends = 4 Their total expenses = Rs 9256 Each friend contribute money = 9256 Ă· 4 6 0 2 7 0 0 − 2 4 0 3 0 0 − 3 0 0 4 5  4 9 2 5 6 − 8 1 2 − 1 2 5 − 4 1 6 − 1 6  2 3 14 Thus each contribute = Rs 2314
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