Word Problems on Decimals
Word problems on decimals are solved here step by step.
1. The product of two numbers is 42.63. If one number is 2.1, find the other.
Solution:
Product of two numbers = 42.63
One number = 2.1
Other number = 42.63 ÷ 2.1
= 426.3 ÷ 21
Therefore, the other number is = 20.3
Answers: 20.3
2. John bought 9.25 m of cloth for $425.50. Find the cost price per metre.
Solution:
Cloth bought by John = 9.25 m
Cost of 9.25 m = $425.50
Cost per metre = 425.50 ÷ 9.25
= 42550 ÷ 925
The cost of the cloth per metre = $ 46
Answers: $46
3. One kg Basmati rice costs $ 43.75. Find the cost of 17 kg of rice.
Solution:
Cost of 1 kg rice = 43.75
Cost of 17 kg rice = 43.75 × 17
Therefore, 17 kg rice cost $743.75
Answers: $743.75
4. Nitheeya spent $35.75 on Physics book and $32.60 on Chemistry book. Then find the total amount spent by Nitheeya.
Solution:
Money spent on Physics book = 35 . 75
Money spent on Chemistry book = + 32 . 60
Total amount spent = 68 . 35
Hence, the amount spent by Nitheeya is 68.35.
5. Nairitee bought 24.50 kg onions, 12.40 kg potatoes and 7.450 kg tomatoes. Find the weight of the vegetables she bought in all.
Solution:
Weight of onions = 24.50 kg
Weight of potatoes = 12.40 kg
Weight of tomatoes = 7.450 kg
Therefore, total weight of the vegetables bought is:
24 . 500 kg
+ 12 . 400 kg
+ 7 . 450 kg
44 . 350 kg
Thus, total weight of the vegetables bought = 44.350 kg.
6. Michael spent $ 90.50 and Robert spent $ 67.25 on a picnic. How much more money was spent by Michael than Robert?
Solution:
Michael spent = $ 90 . 50
Robert spent = - $ 67 . 25
Difference = $ 23 . 25
Therefore, Michael spent $ 23.25 more than Robert.
Worksheet on Word Problems on Decimals
I. Solve the following Word problems on Multiplication of Decimals:
(i) A milk bottle contains 4.75 l of milk. How much milk will 25 such bottles contains?
(ii) Nitheeya bought 28.45 l of milk at the rate of ₹ 21.50 per litre. How much did she spend?
(iii) Nairitee bought 23.95 m of cloth at the rate of ₹ 100 per metre. How much did she spend?
(iv) A petrol container weighs 375.55 kg. What will be the weight of 1000 such petrol containers?
Answer:
I. (i) 118.75 l
(ii) ₹ 611.675
(iii) ₹ 2395
(iv) 375550 kg
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