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Proportional Reasoning-2

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Page 55: Viswanath made idlis by mixing 6 cups of rice with 3 cups of urad dal, while Puneet made idlis by mixing 4 cups of…
Page 56: Convert 60,00,000 cm to kilometres. It is 60 km. Verify this.
Page 56: Using the map above, can you find the geographical distance between Bengaluru and Chennai? Also, find the…
Page 57: Try to find the distances between the same two pairs of cities with different maps that have different scales…
Page 57: Map Making Activity — sketch your classroom to a 1:50 scale.
Page 57: Puneet has only 2 red chillies in his kitchen. But he wants to make spice mix powder that tastes the same as…
Page 58: What is the total volume of this purple paint?
Page 60: A cricket coach schedules practice sessions that include different activities in a specific ratio — time for…
Page 60: A school library has books in different languages in the following ratio — no. of Odiya books : no. of Hindi books :…
Page 60: I have 100 coins in the ratio — no. of ₹10 coins : no. of ₹5 coins : no. of ₹2 coins : no. of ₹1 coins :: 4 : 3 : 2…
Page 60: Construct a triangle with sidelengths in the ratio 3 : 4 : 5. Will all the triangles drawn with this ratio of…
Page 60: Can you construct a triangle with sidelengths in the ratio 1 : 3 : 5? Why or why not?
Page 61: How do we mark the different slices of the pie chart? Can we reduce this ratio to its simplest form?
Page 62: A group of 360 people were asked to vote for their favourite season from the three seasons — rainy, winter and…
Page 62: Draw a pie chart based on the following information about viewers' favourite type of TV channel: Entertainment —…
Page 63: Prepare a pie chart that shows the favourite subjects of the students in your class. You can collect the data of the…
Page 63: Can we represent this problem with the statement of proportionality — 30 : 60 :: 3 : x? Will the travel time…
Page 64: We notice that when the speed increases, the time taken to travel the same distance decreases. Does it decrease by…
Page 65: Which of these are in inverse proportion? (i) x: 40, 80, 25, 16 — y: 20, 10, 32, 50 (ii) x: 40, 80, 25, 16 — y: 20,…
Page 65: Fill in the empty cells if x and y are in inverse proportion.
Page 66: Therefore, to complete 5/3 units of work, it takes them 1 hour if they work together. How much time will it take…
Page 67: Which of the following pairs of quantities are in inverse proportion? (i) The number of taps filling a water tank…
Page 67: If 24 pencils cost ₹120, how much will 20 such pencils cost?
Page 67: A tank on a building has enough water to supply 20 families living there for 8 days. If 10 more families move in…
Page 67: Fill in the average number of hours each living being sleeps in a day by looking at the charts. Select the…
Page 68: (i) What is the most common mode of transport? (ii) What fraction of children travel by car? (iii) If 18 children…
Page 68: Three workers can paint a fence in 4 days. If one more worker joins the team, how many days will it take them to…
Page 68: It takes 6 hours to fill 2 tanks of the same size with a pump. How long will it take to fill 5 such tanks with the…
Page 68: A given set of chairs are arranged in 25 rows, with 12 chairs in each row. If the chairs are rearranged with 20…
Page 68: A school has 8 periods a day, each of 45 minutes duration. How long is each period, if the school has 9 periods a…
Page 68: A small pump can fill a tank in 3 hours, while a large pump can fill the same tank in 2 hours. If both pumps are…
Page 68: A factory requires 42 machines to produce a given number of toys in 63 days. How many machines are required to…
Page 68: A car takes 2 hours to reach a destination, travelling at a speed of 60 km/h. How long will the car take if it…

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