Page 171 - ICSE Math 4

2. Draw hands on clock to represent quarter past 7, and answer the following
ques ons.

11 12 1 (a) What will be the me a er 3 hours 30 minutes?
10 2 (b) What will be the me a er 250 minutes?
9 3
8 4
7 6 5

3. Write the given me using a.m. or p.m.

(a) 9 o’clock at night (b) Having breakfast at 8:30
(c) Going to offi ce at 10 o’clock in the morning

(d) Having a cup of tea at 6:30 in the evening

4. Fill in the blanks.

(a) A train departs from a city at 6:30 a.m. If it reaches its des na on at 1600
hours, it travels for _________.

(b) An exam starts at 1500 hours. If the dura on of the exam is 1 hour 35 minutes,
it will get over at _________ hours and _________ minutes.

(c) A flight is scheduled to depart from the airport at 0045 hours. If it gets delayed
by 4 hours 20 minutes, it will depart at _________ hours.

(d) A bus arrived at a bus terminal at 1920 hours. If the journey took 10 hours
40 minutes to reach its des na on, then the bus had le from the last terminal
at _________ a.m.

5. Convert the following as instructed.

(a) 10 days 20 hours to hours (b) 6 hours to minutes
(c) 25 minutes 12 seconds to seconds

(d) 18,600 seconds to hours, minutes and seconds
(e) 104°F to °C (f) 25°C to °F

6. Calculate the dura on in hours and minutes between the given mings.
(a) 5:30 a.m. and 7:30 a.m. (b) 6:00 a.m. and 8:45 a.m.

(c) 8:15 p.m. and 9.30 p.m. (d) 11:10 a.m. and 1:30 p.m.
(e) 0620 hours and 0850 hours (f) 1030 hours and 1330 hours

7. Solve the following word problems.

(a) A train leaves New Delhi junc on at 8:10 p.m. and reaches Lucknow at 8:10 a.m.
on the following day. How long does the train take to reach Lucknow?

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