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Answer

                    Ling               Juni                 Ling more

Sat                ?                       ?                        19

Sun              20                   15                         5

Both days     ?                     ?                         24

Also             3/5                 2/5                      1/5   (or Total)

From above, Ling made 24 more — > 1/5,

Juni:                                   48 cards#<– 2/5

 

 

0 Replies 1 Like ✔Accepted Answer
Saturday —
Ling : 1u + 19
Juni : 1u

Sunday —
Ling : 20
Juni : 15

1u + 19 + 20 = 1u + 39 (total number of cards Ling made)
1u + 39 + 1u + 15 = 2u + 54 (total number of cards both made)
(3/5) x  (2u + 54) = 1.2u + 32.4 ——- 1u + 39
1.2u – 1u = 0.2u ——- 39 – 32.4 = 6.6
1u ——- 6.6/0.2 = 33
1u + 15 ——- 33 + 15 = 48

Ans : 48 cards.

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