Time and Money — Solutions

Full worked solutions, with method and final answer for every part.

Question 1

(a)Add 55 minutes to 14:35: 14:35 + 25 min = 15:00, then + 30 min more.

15:30

Question 2

(a)Multiply the amount by the exchange rate.

120 × 83.20 = ₹9984

Question 3

(a)Multiply the hourly rate by the number of hours.

450 × 7.5 = ₹3375

Question 4

(a)From 09:20 to 13:20 is 4 hours; subtract the extra 15 minutes.

3 hours 45 minutes

Question 5

(a)Divide the total by 3.

540 ÷ 3 = $180

Question 6

(a)Multiply the bill by 15%.

840 × 0.15 = $126

Question 7

(a)Add 6h50m to 23:40: this crosses midnight.

23:40 + 6h50m = 06:30 (next day)

Question 8

(a)Multiply by the exchange rate.

75 × 105.40 = ₹7905

Question 9

(a)Overtime rate = 1.5 × 300 = ₹450/hour. Basic pay = 6×300, overtime pay = 2×450.

1800 + 900 = ₹2700

Question 10

(a)23:50 + 10 min = 00:00, then add the remaining 35 min.

00:35

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