Find the missing terms of the following proportions:
16:7::240:___
let the missing term be x
So, the given ratio is 16:7::240:x
∴167=240x⇒x=716×240=7×15=105
Hence, the missing term will be 105.
Question 14
Find the missing number in the box in each of the proportions:
□45=1640=24□