Jharne De and Ranjana Kumar Solutions for Chapter: Commercial Mathematics, Exercise 3: HOTS (Higher Order Thinking Skills)

Find the values of $x$ for which the following ratios are in proportion:
$12:x\colon\colon 8:30$

Find the fourth proportion in $21,27 and 14$

Find the mean proportion of the following:
$2$ and $8$

Find the mean proportion of the following:
$3$ and $27$

Find the mean proportion of the following:
$5$and $125$

Find the mean proportion of the following:
$3$and $12$

A team won $4$ games and lost $5$ games. Find the following ratios:
The games won to the games played.

A team won $4$ games and lost $5$ games. Find the following ratios:
The games lost to the games won.