Page 154 - Mathematics_Std_4

Example 4

How many weeks are there in 91 days?

Solution
FOR ONLINE READING ONLY

1week = 7 days
91days = 91 weeks
7

=13 weeks
Therefore, there are 13 weeks in 91 days.

Exercise 1

1. How many weeks and days are there in each of the following?
(a) 48 days (b) 60 days (c) 19 days (d) 112 days

2. Convert the following time into days:

(a) 12 weeks 1 day (b) 36 weeks 6 days
(c) 72 weeks 4 days (d) 80 weeks

3. How many seconds are there in 2 hours and 30 minutes?

4. How many days are there in three leap years?

5. A bridge was constructed in 34 days. Convert this time into

weeks and days?

6. A bus travelled for 72 hours. How many days did the bus
travel?

7. The spinach in the vegetable garden took 30 days to mature.

Convert this time into weeks and days?

8. A teacher has two periods of 40 minutes for each lesson.
What is the total time of the periods in seconds?

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MATHEMATICS STD 4 PB 2024.indd 147