Question

answer needed for q10​

Answer 1

Step-by-step explanation:

i) $: \implies \: \sf \frac{3}{4} : x : : 15 : 20 \\ : \implies \sf \frac{3}{4x} = \frac{15}{20} \\ : \implies \sf \: \frac{3 \times 20}{4 \times 15} = x \\ : \implies \: \sf \: x = 1 \: ans.$

(ii) Converting both into same unit :

1 hr = 60 mins : 45 mins

= 4 : 3 ans.