Read, analyze and solve the problems carefully. Show your solution
1. Hilda, Maring, Edgar and Lourdes are sisters and brothers. Hilda is 4 years older
than Maring who is 16 years older than Edgar.. Edgar is 4 years older than Lourdes,
who is 39 years old now. How old are Edgar, Maring and Hilda?
1. Hilda, Maring, Edgar and Lourdes are sisters and brothers. Hilda is 4 years older
than Maring who is 16 years older than Edgar.. Edgar is 4 years older than Lourdes,
who is 39 years old now. How old are Edgar, Maring and Hilda?
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Answer:
Edgar is 43 yrs old
Maring is 59 yrs old
Hilda is 63 yrs old
Solution :
1st: analyze and identify the order & gaps of their ages to formulate a mathematical equation.
Hilda : eldest (1st)
Maring : 2nd
Edgar: 3rd
Lourdes : youngest
Hence, we arrive with the ff formula:
Let [(l+4) + 16] + 4 = Hilda's age
Let (l+4) + 16 = Maring's age
Let l + 4 = Edgar's age
Let l = 39 (Lourdes' age)
2nd: solve for their ages using the formulas
l + 4 = Edgar's age
39 + 4 = 43 : hence Edgar is 43 yrs old
Let (l+4) + 16 = Maring's age
(39 + 4) + 16
43 + 16 = 59 : hence Maring is 59 yrs old.
[(l+4) + 16)] + 4 = Hilda's age
[(39 + 4) + 16] + 4
(43 + 16) + 4
59 + 4 = 63 : hence Hilda is 63 yrs old.
Don't forget to double check. Hope this helps :)