Amanda pours 3/4 of her water into Barbara’s empty bottle. Barbara then pours 3/5 of her water into Charlie’s empty bottle. Charlie then pours 1/2 of his water into David’s empty bottle. If David now has 18 ounces of water, how many ounces does Amanda still have?
Answers
Solution :-
Let total water in Amanda bottle was x ounces .
so,
→ Amanda pours water in Barbara’s empty bottle = (3/4) of x = (3x/4) ounces .
now,
→ Barbara pours water in Charlie’s empty bottle = (3/5) of (3x/4) = (9x/20) ounces .
and,
→ Charlie pours water in David’s empty bottle = (1/2) of (9x/20) = (9x/40) ounces .
A/q,
→ (9x/40) = 18
→ 9x = 40 * 18
→ x = 40 * 2
→ x = 80 ounces .
therefore,
→ Water Amanda still have = (1/4) of 80 = (1/4) * 80 = 20 ounces . (Ans.)
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