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\\January 6, 2024 3:59 PM Surender Prajapati Proof 5 Reader _________________________ Date: ___________________74

(e) 8 weeks 1 day (f) 21 weeks 3 days 20 hours Chapter Assessment
2. (a) 5 minutes 16 seconds (b) 4 hours 8 minutes 1. (a) –(iii) (b) –(ii) (c) –(ii)
(c) 4 hours 9 minutes 6 seconds 2. Perfume, purse, earrings or purse, sunglasses, earrings (Answer may vary)
(d) 13 hours 57 minutes 30 seconds (e) 9 months 19 days 3. Loss of `18 4. `25 5. `14500 6. `499 7. `32,500, `75000
3. 8 min 59 seconds 8. `23250 9. `450 10. `830 11. Profit of `120
Practice Time 10D Chapter 12: Perimeter, Area and Volume
1. (a) –(iii) (b) –(ii)
2. (a) temperature (b) 100, 212 (c) 37, 98.6 Let’s Recall
3. (a) 8°C (b) 72°C (c) 57°F 1. (a) 48 cm (b) 14.4 cm (c) 12.4 cm
4. (a) 77°F (b) 118.4°F (c) 167° F (d) 208.4°F (e) 122°F 2. (a) 12 sq. units (b) 8 sq. units (c) 4 sq. units
5. (a) 20° C (b) 45°C (c) 55°C (d) 100°C (e) 123.56°C Practice Time 12A
6. 87.8°F 1. (a) 26 cm (b) 160 cm (c) 11.4 m (d) 2140 cm or 21.40 m
Mental Maths 2. (a) 24 cm (b) 28.8 cm (c) 36 m (d) 34 m
3. (a) 15 cm (b) 14 cm (c) 18 cm (d) 42 cm
1. (b) 2. (a) 3. (c) 4. (d)
4. (a) 18 cm (b) 14.4 cm (c) 21 cm (d) 28.8 cm
Chapter Assessment
5. (a) Length Breadth Perimeter of the Rectangle
1. (a) –(iv) (b) –(ii) (c) –(iii) (d) –(iii) (i) 4 cm 7 cm 22 cm
2. 21 hours 15 minutes 3. 8 years 3 months 29 days
4. 39 days 5. Sophia, 7 years 10 months and 25 days (ii) 4.8 cm 3.2 cm 16 cm
6. 7 minutes 7. 77.2°F 8. 68°F 9. 39.22°C 10. 14.4 minutes (iii) 7 cm 5 cm 24 cm
Brain Sizzlers (iv) 18 cm 12 cm 60 cm
1
1
Third watch (v) 9 cm 5 cm 30 cm
2 2
Chapter 11: Money (vi) 5.5 cm 5 cm 21 cm
Let’s Recall
(b) Side of a Square Perimeter of the Square
1. (a) `153.25 (b) `344.25 (c) `11530 (d) `211.10 (i) 5 cm 20 cm
2. `11450 (ii) 12.5 cm 50 cm
Practice Time 11A (iii) 10 cm 40 cm
1
1. (a) `9 (b) `18 (c) `27 (iv) 7 cm 30 cm
2. `520 3. `32, `60 4. `315 5. `500 2
6. `324 7. `1800 8. `25,20,000 (v) 22.5 m 90 m
(vi) 4.9 m 19.6 m
Think and Answer
6. 55.6 cm 7. 26.7 cm 8. 15.3 cm 9. 66 m 10. 20.8 cm
No profit no loss
11. 1632 m or 1.632 km 12. 77 m, ₹ 8624
Practice Time 11B Practice Time 12B
1. (a) –(i) (b) –(iv) (c) –(i) (d) –(iii) 1. (a) 240 sq. cm (b) 115 sq. cm (c) 10560 sq.cm
2. (a) Profit of `9.50 (b) Loss of `8.75 (c) Profit of `317
(d) 81000 sq. cm or 8.1 sq. m
(d) Loss of `13.75 3. `175 4. Gain of `64250 2. (a) 17.64 sq. cm (b) 4096 sq. cm (c) 72.25 sq. m (d) 38.44 sq. cm
5. Selling Price Profit Loss Cost Price 3. Length of the Breadth of the Area (sq. cm)
(a) `195 – `18 `213 Rectangle (cm) Rectangle (cm)
(b) `977 `83 – `894 (i) 9 4.5 40.5
(c) `2980 `105 – `2875 (ii) 50 32 1600
(d) `8298.25 – `1150.75 `9449 (iii) 23 15 345
(e) `4368 `1486 – `2882 (iv) 8.5 6 51
(f) ₹17672 – `1328 `19000 4. (a) 3 sq. units (b) 6 sq. units (c) 4.5 sq. units (d) 7.5 sq. units
5. (a) 7 sq. units (b) 9 sq. units (c) 7.5 sq. units (d) 7.5 sq. units
6. Profit of `360 7. `2780
6. 900 sq. m 7. 34 m 8. 480 sq. m 9. `877.5
Mental Maths 10. (a) 107 sq. cm (b) 168 sq. cm (c) 93 sq. cm
Cost Price (`) Selling Price (`) Profit/Loss Amount (`) Practice Time 12C
1. `1354 `1005 Loss `349 1. 151 sq. units 2. 35 sq. units 3. 56 sq. units 4. 136 sq. units
2. `21350 `23350 Profit `2000 5. 93 sq. units 6. 150 sq. units
3. `7224 `6724 Loss `500
4. `9702 `10542 Profit `840 Practice Time 12D
1. (a) 8 cu. units (b) 7 cu. units (c) 10 cu. units (d) 9 cu. units
Brain Sizzlers 2. (a) 765 cu. cm (b) 12.5 cu. cm (c) 1728 cu. cm
`4.50 per egg 3. (a) 1056 cu. cm (b) 25 cu. m (c) 631800 cu. mm (d) 4.536 cu. m

278 Mathematics-5