12 Feb: Revision: Maths Std - 4
Answer the following questions :-
1) A film took 2 hours and 50
minutes to finish. During the
show, advertisements and the
interval took up 32 minutes. How
long was the film?
2) Raj has 60 cakes. A quarter of
these cakes are distributed. How
many cakes are left with him?
3) A drum had 500 litres of water.
1/10 of the water was consumed
during the day. How many litres
of water were remaining in the
drum?
4) A number is 25340 more than
the sum of 245304 and 439752.
Find the number.
Please tell me answer fast
Answers
1) Total time of film =2hrs 50min
= 2 × 60 + 50
=120 + 50
= 170minutes
Interval time = 32 min
Total time of the film = 170 - 32
= 138 min
2) total number of cakes raj have =60
Number of the cake he distributed = 1/4
Number of cakes left = 1/4- 3/4
=3/4
that is, 3/4 of total number of cakes
=3/4 × 60
= 180/4
=45 cakes left with him
3) Number of litres of water drum had = 500 l
1/10 of the water consumed during day
Number of litres of water left in the drum
= 1-10/10
= 9/10, that is 9/10 of 50
= 9/10 × 500
=4500/10
= 450 litres of water left in the drum
4)