Class 4th Rs Aggarwal Exercise 55

 

Rs Aggarwal MATH

Exercise - 55 

Here are the answers with the process:

1. Cost of 23 bicycles
   Cost of 1 bicycle = ₹1475
   Cost of 23 bicycles = 1475 × 23 = ₹33,925

2. Toys made in 4 weeks
   Toys made in 1 day = 87
   Toys made in 4 weeks = 87 × 7 × 4 = 2,436 toys

3. Buttons in 48 packets
   Buttons in 1 packet = 576
   Buttons in 48 packets = 576 × 48 = 27,648 buttons

4. Distance covered in 29 liters
   Distance per liter = 54 km
   Distance in 29 liters = 54 × 29 = 1,566 km

5. Cost of table fans
   Cost of 17 fans = ₹6,545
   Cost of 1 fan = 6545 ÷ 17 = ₹385
   Cost of 8 fans = 385 × 8 = ₹3,080

6. Passengers in 8 planes
   Passengers in 3 planes = 1,185
   Passengers in 1 plane = 1185 ÷ 3 = 395
   Passengers in 8 planes = 395 × 8 = 3,160 passengers

7. Clips in 13 packets
   Clips in 18 packets = 2,250
   Clips in 1 packet = 2250 ÷ 18 = 125
   Clips in 13 packets = 125 × 13 = 1,625 clips

8. Distance covered in 18 hours
   Distance in 25 hours = 2,025 km
   Distance in 1 hour = 2025 ÷ 25 = 81 km
   Distance in 18 hours = 81 × 18 = 1,458 km

9. Forms printed in 25 hours
   Forms in 16 hours = 37,600
   Forms in 1 hour = 37600 ÷ 16 = 2,350
   Forms in 25 hours = 2350 × 25 = 58,750 forms

10. Horns produced in 3 weeks
    Horns in 12 days = 6,816
    Horns in 1 day = 6816 ÷ 12 = 568
    Horns in 21 days (3 weeks) = 568 × 21 = 11,928

11. Passengers in 25 buses
    Passengers in 13 buses = 715
    Passengers in 1 bus = 715 ÷ 13 = 55
    Passengers in 25 buses = 55 × 25 = 1,375 passengers

12. Kilometers for 22 liters of petrol
    Distance for 15 liters = 285 km
    Distance for 1 liter = 285 ÷ 15 = 19 km
    Distance for 22 liters = 19 × 22 = 418 km

13. Rent for 17 months
    Annual rent = ₹58,500
    Rent for 1 month = 58500 ÷ 12 = ₹4,875
    Rent for 17 months = 4875 × 17 = ₹82,875

14. Earnings in 3 days
    Earnings in 8 days = ₹1,080
    Earnings in 1 day = 1080 ÷ 8 = ₹135
    Earnings in 3 days = 135 × 3 = ₹405

Assessment 11 :-  QUESTION Bag 1

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Question Bag 1 (Objective Type Questions)

1. Mr. Roy's savings in 1 year
   Monthly savings = ₹250
   Annual savings = 250 × 12 = ₹3,000
   Correct answer: (c) ₹3000

2. Runs scored in 4 balls
   Runs scored in 29 balls = 58
   Runs per ball = 58 ÷ 29 = 2
   Runs in 4 balls = 2 × 4 = 8
   Correct answer: (a) 8

3. Cost of 25 train tickets
   Cost of 1 ticket = ₹586
   Cost of 25 tickets = 586 × 25 = ₹14,650
   Correct answer: (a) ₹14560

4. Cost of 4 books
   Cost of 6 books = ₹120
   Cost of 1 book = 120 ÷ 6 = ₹20
   Cost of 4 books = 20 × 4 = ₹80
   Correct answer: (c) ₹80

5. Price of 10 oranges
   Price of 1 dozen oranges (12) = ₹96
   Price of 1 orange = 96 ÷ 12 = ₹8
   Price of 10 oranges = 8 × 10 = ₹80
   Correct answer: (b) ₹80

6. Time to cover 1140 km
   Speed = 60 km/hour
   Time = Distance ÷ Speed = 1140 ÷ 60 = 19 hours
   Correct answer: (b) 19

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Assessment 11 :-  QUESTION Bag 2

 (Fill in the blanks)

(a) Toy cars made

• Weekly production = 4,200
  Daily production = 4200 ÷ 7 = 600 cars
  In 18 days = 600 × 18 = 10,800 cars

(b) Weight of apples

• Weight of 1 crate = 208 ÷ 8 = 26 kg
  Weight of 25 crates = 26 × 25 = 650 kg

(c) Shirt cost

• Cost of 1 dozen shirts = ₹4,752
  Cost of 1 shirt = 4752 ÷ 12 = ₹396
  Cost of 50 shirts = 396 × 50 = ₹19,800

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2. Time for 9 buckets
   Time for 12 buckets = 72 minutes
   Time for 1 bucket = 72 ÷ 12 = 6 minutes
   Time for 9 buckets = 6 × 9 = 54 minutes

3. Cars manufactured in 25 days
   Cars in 3 days = 285
   Cars in 1 day = 285 ÷ 3 = 95
   Cars in 25 days = 95 × 25 = 2,375 cars

4. Trees in 72 rows
   Trees in 25 rows = 2,275
   Trees in 1 row = 2275 ÷ 25 = 91
   Trees in 72 rows = 91 × 72 = 6,552 trees

5. Cost of 38 watches
   Cost of 15 watches = ₹5,250
   Cost of 1 watch = 5250 ÷ 15 = ₹350
   Cost of 38 watches = 350 × 38 = ₹13,300

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