Question 1136536
<br>
The difference between Tom and Ram is the same as the difference between Ram and Chin.<br>
That makes the three amounts an arithmetic progression.<br>
And that makes the middle amount the average of the three amounts: the middle amount is $90/3 = $30.<br>
Then the two other amounts are $20 and $40.<br>
ANSWER: Chin $20; Ram $30; Tom $40