CUET General Test 2022 17 Aug Shift 1 PYQs

If $a:b = \frac{12}{5}:\frac{3}{10}$ and $b:c = \frac{7}{9}:\frac{12}{7}$ then $a:c$ is

P is 40 years old and Q is 60 years old. How many years ago was the ratio of their ages 3 : 5 ?

What is the value of x if $4 : x = x : 16$ ________?