10. Solve the following word problems by writing with proper steps.
a. A car’s tank can hold 80L of petrol. If it had 56.765 L of petrol , how much more petrol can
be filled in it?
b. Raju travelled 2.458 km on foot, 12.453 km by cycle and rest by scooter. If he travelled a
total distance of 30 km, find the distance he covered by scooter.
c. A water tanker carrying 4506.80 L of water has to fill 8 tanks. Find the amount of water filled
in each tank?
d. The weight of 5 equal packets of toffees is 124.45 kg. Find the weight of 1 such packet.
e. Rina read 135.63 words in 9 minutes. How many words did she read in 1 minute?
Answers
Answer:
sorry this is too long answer write turn wise turn
(a) Litre of petrol a car can hold = 80
it had, 56.765 litre of petrol , so we have to find left litre of petrol . Then ,
= ( 80 - 56.765 )L = 23.235
So, 23.235 litre of petrol can be filled in car.
(b) Total distance travelled by raju =
30 km
Distance travelled by foot =
2.458 km
Distance travelled by cycle =
12.453 km
So, total distances travelled by foot and
cycle
= ( 2.458 + 12.453)km = 14.911
Distance travelled by scooter =
= ( 30 - 14.911 )km = 15.089 km
(c) Total litre of water carrying by water tanker
= 4506.80 L
If 4506.80 L of petrol will be fill in 8 tank ,
the each tank contains = 4506.80 / 8
= 563.35 L
(d) weight of 5 equal packets of toffees =
124.45 kg
So, weight of 1 packet = 124.45 / 5 =
24.89 kg
(e) Total number of words read by rina in
9 minutes = 135.63
Number of words she reads in 1 m = 135.63 / 9
= 15.07
So, 15.07 words she reads in 1 minute.
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