Page 150 - Maths Skill - 3

148 Maths

Exercise 11.2

1. Draw hands to show time in the clocks as per the instructions given.

(a) (b) 12 12
11 12 1 11 12 1 11 1 11 1
10 2 Time after 10 2 10 2 Time after 10 2
9 3 3 hours 9 3 9 3 30 minutes 9 3

8 4 8 4 8 4 8 4
7 6 5 7 6 5 7 6 5 7 6 5

2. Write the time in a.m./p.m. in the boxes.

(a) 6 o’clock in the morning Challenge

(b) 7 o’clock in the evening I am a unit of time, marking a single
(c) 10 o’clock in the morning moment’s chime

(d) 4 o’clock in the evening In sixty of me, a minute you will find,
Though I pass unnoticed, never behind,
(e) 3 o’clock in the morning What am I, young and old?

(f) 2 o’clock in the afternoon

3. Nitin went to school at 7:30 a.m. He spends 6 hours there. At what time will he
reach home?
1 year 12 months
Conversion of Time 1 week 7 days

Different measurements of time are interlinked. 1 day 24 hours
Following chart shows the relationship of one 1 hour 60 minutes

measurement of time with the other. 1 minute 60 seconds

� To convert hours into minutes, multiply the given hours by 60.
For example, 3 hours = 3 × 60 minutes = 180 minutes

� To convert days into hours, multiply the given days by 24.
For example, 3 days = 3 × 24 hours = 72 hours

Months of a Year
Minutes, hours, days, weeks, months, years— Monday Tuesday
all serve as different measurements of time. Sunday
A month has about four weeks and a Saturday Days in

week has seven days—Monday, Tuesday, a week Wednesday
Wednesday, Thursday, Friday, Saturday Friday
and Sunday. These days keep on repeating. Thursday