Word Problem: Decimals - 2

Q1: Neena needs 13.25 cm of a ribbon to wrap a gift and 12.9 cm of the same ribbon to tie the flowers. How much ribbon does she need in all for both the tasks?

Sol: Ribbon for gift = 13.25 cm
Ribbon for flowers = 12.90 cm (written with two decimal places to add)
Total ribbon needed = 13.25 cm + 12.90 cm = 26.15 cm
Neena needs a total of 26.15 cm of ribbon.

Q2: At a dairy, the milkman prepares 25 L of lassi. If by the end of the day, the milkman is able to sell 13.907 L of lassi, find out the amount of lassi left at the dairy.

Sol: Initial amount of lassi = 25.000 L (written to three decimal places)
Lassi sold = 13.907 L
Lassi remaining = 25.000 L - 13.907 L = 11.093 L
The dairy has 11.093 L of lassi left.

Q 3: Saina makes 5.25 L of fruit punch while Reshma makes 5.701 L of fruit punch. Who has made more fruit punch and by how much?

Sol: Saina's fruit punch = 5.250 L (written to three decimal places to compare)
Reshma's fruit punch = 5.701 L
Difference = 5.701 L - 5.250 L = 0.451 L
Reshma made more fruit punch by 0.451 L.

Q4: Manav bought 7 stickers at ₹3.56 each. How much did he pay for the stickers?

Sol: Cost per sticker = ₹3.56
Number of stickers = 7
Total cost = ₹3.56 × 7 = ₹24.92
Manav paid ₹24.92 for the stickers.

Q5: Rajesh has ordered 14 T-shirts for the salesmen at his shop. If each t-shirt costs ₹781.35, find the cost of all 14 T-shirts.

Sol:Cost per T-shirt = ₹781.35
Number of T-shirts = 14
Cost for 10 T-shirts = ₹781.35 × 10 = ₹7,813.50
Cost for 4 T-shirts = ₹781.35 × 4 = ₹3,125.40
Total cost = ₹7,813.50 + ₹3,125.40 = ₹10,938.90
The total cost for the T-shirts is ₹10,938.90.

Q6: At an adventure camp, 4.875 litres of badam milk was distributed equally among 15 students. How much milk did each child get?

Sol: Total milk = 4.875 L
Number of students = 15
Milk per student = 4.875 L ÷ 15 = 0.325 L (since 15 × 0.325 = 4.875)
Each student got 0.325 litres of badam milk.

Q7: Twenty-six cookies cost ₹155.48. What is the cost of 1 cookie?

Sol:Total cost = ₹155.48
Number of cookies = 26
Cost per cookie = ₹155.48 ÷ 26 = ₹5.98
Each cookie costs ₹5.98.

Q8: Diya is a designer. She makes a half jacket using 2.9 m of cloth. How many half jackets can she make if she has 98.6 m of cloth in all?

Sol: Cloth per jacket = 2.9 m
Total cloth = 98.6 m
Number of jackets = 98.6 m ÷ 2.9 m = 34 (because 2.9 × 34 = 98.6)
Diya can make 34 half jackets.

Q9: Ria has 45.6 m long lace. How many pieces of lace 1.2 m long can she cut from the total lace she has?

Sol:Total length of lace = 45.6 m
Length of each piece = 1.2 m
Number of pieces = 45.6 m ÷ 1.2 m = 38 (since 1.2 × 38 = 45.6)
Ria can cut 38 pieces of lace.

Q10: A stack of 54 paper plates is 1.458 cm thick. Calculate the thickness of one paper plate.

Sol:Total thickness = 1.458 cm
Number of plates = 54
Thickness per plate = 1.458 cm ÷ 54 = 0.027 cm
Each paper plate is 0.027 cm thick.