Question

Express the following ratios in the simplest form a 18000 sec : 1 hr with steps please I will mark as brainlist

Answer 1

18000 sec : 1 hr
=18000 sec : 3600 sec
= 18000/3600
= 5:1
Answer 5:1

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Hope this helps you

Answer 2

30/15, [divide both the numerator and denominator by 15 since, the h.c.f. of 30 and 15 is 15]

= 2/1

= 2 : 1

(ii) 60 and 48

= 60 : 48

First we need to convert the given ratio into fraction,

= 60/48 (divide both the numerator and denominator by 12 since, the h.c.f. of 60 and 48 is 12)

= 5/4

= 5 : 4


(iii) 8 kg and 10 kg

= 8 kg : 10 kg

= (8 kg)/(10 kg), [divide both the numerator and denominator by 2 since, the h.c.f. of 8 and 10 is 2]

= 4/5

= 4 : 5


Now, we will solve different types of problems on ratios in simplest form where both the quantities in different units. So, before finding the required ratio, we shall have to express both the quantities in the same units.

(iv) 3 kg to 2000 gm

= 3 kg : 2000 gm

= (3 kg)/(2000 gm)

We know, 1 kg = 1000 gm, 3 kg = 3 × 1000 gm = 3000 gm,

= (3000 gm)/(2000 gm), [divide both the numerator and denominator by 1000 since, the h.c.f. of 3000 and 2000 is 1000]