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(a) If Francis had $10n at first, he donated $n on charity and $ 1/3 * ( 10n – n) = $ 3n on shopping. 

So he was left with $ ( 10n – n – 3n) = $ 6n 

6n = 564

n = 94

3n = 282

He spent $282 on shopping. 

(b) If each watch cost $3u, each shirt cost $u and each belt cost $(3u – 40)

3u + 2u + ( 3u – 40 ) = 282

8u = 322

u = 40.25

3u – 40 = 80.75

Cost of the belt was $80.75.

Not sure if answer correct as answer seldom not in integer.

1 Reply 0 Likes ✔Accepted Answer

Thank you. 

0 Replies 1 Like