Exercise - 1 D
3. Solve the following word problems.
a. A man bought 1.5 kg guava, 20 hg apples and 1800 g pomegranate. Find the total weight of the fruits in kilogram.
Solution: weight of guava = 1.5 kg
weight of apples = 20 hg = 2 kg
weight of pomegranate = 1800 g = 1.8 kg
Total weight of Fruits = 1.5 kg + 2 kg + 1.8 kg = 5.3 kg
b. A businessman has a laptop worth Rs. 1,28,500, a desktop computer worth Rs 74,100 and a tablet worth Rs. 65,000. Find the total cost of these gadgets.
Solution: Cost of Laptop = 1,28,500
Cost of desktop = 74,100
Cost of tablet = 65,000
Total cost of these gadgets = 1,28,500 + 74,100 + 65,000 = Rs.2,67,600
c. A car is travelling from Imphal to Kohima. The car stops frequently during the journey. The distances travelled by the car in the journey are 22.1 km, 56730 m, 281700 dm and 289 hm. Calculate the distance between the two places in kilometres.
Solution: First distance travelled = 22.1 km
Second distance travelled = 56730 m = 56.730 km
Third distance travelled = 281700 dm = 28.1700 km
Fourth distance travelled = 289 hm = 28.9 km
Total distance travelled = 22.1 + 56.730 + 28.1700 + 28.9 = 135.9 km
d. The distance between Jammu and Srinagar is 266.3 km. The distance between Jammu and Pahalgam is 2482 hm. Find the difference in the two distances in kilometres.
Solution: Distance between Jammu and Srinagar = 266.3 km
Distance between Jammu and Pahalgam = 2482 hm = 248.2 km
Difference in the two distances = 266.3 - 248.2 = 18.1 km
e. For a school adventure trip to Ladakh, each child had to pay Rs. 32,500. What was the total money paid by 37 children who went for the trip?
Solution: Each child pay = Rs. 32,500
No. of children = 37
Total money = 32,500 x 37 = Rs. 12,02,500
f. During a charity event, storybooks were given away to children as gifts. The total cost of books distributed to 43 children is Rs. 12,685. Find the cost of each book.
Solution: No. of children = 43
Total cost of books = Rs.12,685
Cost of each book = 12,685 / 43 = Rs. 295
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