Page 256 - Math Genius C4

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\ 03-Oct-2025 Bharat arora P-9 Reader’s Sign _______________________ Date __________

2. (a) 15 hours 15 minutes (b) 14 hours 58 minutes 2. (a) `7114.20 (b) `13458.88
(c) 4 minutes 40 seconds (d) 19 hours 43 minutes 54 seconds 3. (a) `398.64 (b) `503.65 (c) `139.84
3. 29 hours 14 minutes OR 1 day 5 hours 14 minutes 4. (a) `1514 (b) `4232.50 (c) `3255 (d) `2009.31
4. 95 minutes 40 seconds OR 1 hour 35 minutes 40 seconds 5. `68.65 6. Rupesh, `475.05
5. Ajay, 15 minutes 7. `81.05 8. `698.75
Practice time 11F Practice time 12C
1. starting time Finishing time Duration 1. (a) `592 (b) `614.08 (c) `2146.80 (d) `84975.60
(a) 7:25 a.m. 9:15 a.m. 1 hour 50 minutes 2. (a) `10.75 (b) `35.06 (c) `41.90 (d) `203.74
(b) 11:10 p.m. 12:20 a.m. 1 hour 10 minutes 3.
(c) 5:45 a.m. 6:35 a.m. 50 minutes `337.5 4. `15759.75 5. `29375 6. `582609
(d) 8:10 p.m. 11:35 p.m. 3 hours 25 minutes 7. `65 8. `483.2 9. `5.8 10. `57
(e) 10:55 a.m. 12:16 p.m. 1 hour 21 minutes Practice time 12D
2. 2 hours 45 minutes 3. 1 hour 30 minutes 1. aPNa statIONeRY
4. 5 hours 15 minutes 5. 6:20 p.m. Name: ___________ Date: ___________
Address: ___________________ Bill No. 125
Challenge Question (Page 213)
s.No. Items Quantity Rate (`) amount (`)
Friday
1. Notebooks 6 55.40 332.40
Practice time 11G
2. Files 8 25 200
1. (a) 4 May (b) 17 February (c) 30 July (d) Saturday 3. Pens 2 60.5 121.00
(e) Saturday (f) Monday 4. Pencils 12 5.75 69
2. (a) 6 weeks (b) 15 weeks (c) 12 years (d) 6 years
total = 722.40
(e) 3 months (f) 2 years
3. (a) 97 days (b) 143 days (c) 54 days (d) 67 days Chapter assessment
(e) 15 days (f) 230 days 1. (a) (ii) (b) (iii) (c) (iii) (d) (i)
4. (a) 40 months (b) 59 months (c) 82 months (d) 88 months 2. NO 3. `8000 4. `800 5. `9170 6. `2355
(e) 20 months (f) 61 months 7.
5. 95 days 6. 5th of January `35 9. `2556 10. 5
7. 181 days 8. 16 August 2021 Mental Maths (Page 229)
Chapter assessment 1. (c) 2. 50 3. (a) 7.50 (b) 9.75
4. `25 5. `3
1. (a)-(iii), (b)- (iv), (c)-(ii), (d)-(i), (e)-(i)
2. 12 minutes 26 seconds 3. 3:45 p.m. Challenge Question (Page 229)
4. 9:45 p.m. 5. 10:30 p.m. 6. 1 hour 19 minutes `6375
7. 6:25 p.m. 8. 57 days
Chapter 13. Data Handling
Mental Maths (Page 217)
Let’s ReCaLL
team a B C D
Total 4 hours 4 hours 10 minutes 5 hours 34 minutes 4 hours stationery tally marks Number of items
Time 3 seconds 29 seconds 29 seconds 2 seconds Pencil 4
Rank 2nd 3rd 4th Ist Notebook 3
Chapter 12. Money Pen 2

Let’s ReCaLL Sharpener 2
1. Rohan 2. Week-2 3. Siya - `233; Rohan - `342 Eraser 3
4. Rohan
Colour box 2
think tank (Page 221) Y
`50000
Practice time 12a 4
1. (a) `218 (b) `1876 (c) `725 (d) `3005 (e) `3347
3
2. `389 3. Gyan 4. `1185
5. She needs `55 more No. of Items 2
think tank (Page 222) 1
`6041
0 X
Practice time 12B Pencil Notebook Pen Sharpener Eraser Colour box
1. (a) `1218.05 (b) `1121.50 (c) `9390.00 stationery Items

254 Mathematics-4