In-Text Questions Try These (Textbook Page No. 33,34,39) - Chapter 2 - Measurements - Term 2 - 6th Maths Guide Samacheer Kalvi Solutions

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Question 1.
Say the following time in two ways.
(a) $9.20$
(b) $4.50$
(c) $5.15$
(d) $6.45$
(e) $11.30$
Solution:
(a) $9.20$
20 minutes past 9
40 minutes to 10
(b) $4.50$
50 minutes past 4
10 minutes to 5
(c) $5.15$
15 minutes past 5
45 minutes to 6
(d) $6.45$
45 minutes past 6
15 minutes to 7
(e) $11.30$
30 minutes past 11
30 minutes to 12

Try These (Textbook Page No. 34)
Question $1 .$
Convert the following:
(i) 4 hours $=$ minutes
(ii) 240 minutes $=$ hours
(iii) 30 minutes $=$ seconds
(iv) 3600 seconds $=$ hours
(v) 2 hours = seconds
Solution:
(i) 4 hours $=240$ minutes
4 hours $=4 \times 60$ minutes $=240$ minutes
(ii) 240 minutes $=4$ hrs
240 minutes $=\frac{240}{60}=4$ hrs
(iii) 30 minutes $=1800$ seconds
30 minutes $=30 \times 60$ seconds $=1800$ seconds
(iv) 3600 seconds $=1 \mathrm{hrs}$
3600 seconds $=\frac{3600}{60}$ minutes $=60$ minutes $=\frac{60}{60}$ hours $=1$ hour
(v) $2 \mathrm{hrs}=7200$ seconds
2 hrs $=2 \times 60$ minutes $=120$ minutes $=120 \times 60$ seconds $=7200$ seconds

Try These (Textbook Page No. 36)
Question $1 .$
Convert the 12 -hour format into the 24 -hour format and vice versa.

Solution:
$10: 40$ a.m. $=10: 40$ hours
11 a.m. $=11: 00$ hours
$1: 15$ a.m. $=01: 15$ hours
5 a.m. $=05: 00$ hours
$16: 20$ hours $=4: 20$ p.m.
$00: 40$ hours $=12: 40$ a.m.
l p.m. $=13: 00$ hours
$11: 15$ p.m. $=23: 15$ hours
$3 \mathrm{p} \cdot \mathrm{m} .=15: 00$ hours
12 midnight $=00: 00$ hours
$12: 25$ hrs $=00: 25$ p.m.
$4: 10 \mathrm{hrs}=4: 10 \mathrm{a} \cdot \mathrm{m} .$

Try These (Textbook Page No. 39)
Question $1 .$
Check whether the following years as Ordinary or Leap Year?
$1994 ; 1985 ; 2000 ; 2007 ; 2010 ; 2100$
Solution:
We know that a leap year is divisible by 4 .
In the case of a century which is divisible by 400 is a leap year.
1994 - Not a leap year (Not divisible by 4)
1985 - Not a leap year (Not divisible by 4)
2000 - It is a leap year (divisible by 400 )
2007 - Not a leap year (Not divisible by 4)
2010 - Not a leap year (Not divisible by 4)
2100 - Not a leap year (Not divisible by 400 )
 

Question 2 .
How many days are there from 1st April to 30 th June?
Solution:
Months from April to June are: