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Comparing Quantities

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Mathematics

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Mathematics

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Class 10 Class 12
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Convert the following ratios to percentages.
(a) 3 : 4 (b) 2 : 3


773 Views

Find the ratio of the following:

(a) Speed of a cycle 15 km per hour to the speed of scooter 30 km per hour.

(b) 5 m to 10 km

(c) 50 paise to Rs 5


In a ratio, the quantities are in the same unit. If they are not in the same units, then first we convert them in the same unit.

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72% of 25 students are good in Mathematics. How many are not good in Mathematics?


72% of 25 are good in Mathematics.

∴ (100 - 72)% of 25 students are not good in Mathematics.

or 28% of 25 students are not good in Mathematics

1363 Views

A football team won 10 matches out of the total number of matches they played. If their win percentage was 40, then how many matches did they play in all?


1218 Views

If Chameli had Rs 600 left after spending 75% of her money, how much did she have in the beginning?


1227 Views