Question

what percent is a)55m of 2km
b)40 seconds of 2 minutes

Answer 1

a)2.75%
b)33%
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Answer 2

Given:

a)55m of 2km

b)40 seconds of 2 minutes

To find:

We have to find the percentage.

Solution:

1km is equal to 1000m.

Thus 2km is equal to 2000m.

Let 55m is x% of 2km.

Thus we can write-

$2000 \times \frac{x}{100} = 55 \\ x = \frac{55}{20} \\ x = 2.75$

55m is 2.75% of 2km.

1 minute is equal to 60 seconds.

Thus 2 minutes is equal to 120 seconds.

Let 40 seconds is x% of 2 minutes.

Thus we can write-

$120 \times \frac{x}{100} = 40 \\ x = \frac{40 \times 100}{120} \\ x = 33.33\%$

40 seconds is 33.33% of 2 minutes.