Mathematics
===========
Problem:
A wood is divided into 4 pcs with a ratio of:
2:3:4:6. If the longest portion is 14 inches,
what is the total length of the wood?
====================================
Solution:
Figure A:
| 2 | 3 | 4 | 6 | = 15|----|------|--------|------------|
total length of a given:
= 2 + 3 + 4 + 6 = 15
Let X be the total length
Figure B:
|<------ 14 inches ----->||-----------------------------------------------------| = x=?
By ratio and Proportion:
Total Length (A) Total Length (B)
--------------- = -----------------
Longest Length (A) Longest Length(B)
15 / 6 = X / 14
(15)(14)
--------- = X
6
or
(15)(14) 5 (14) (5) (7)
X = ------- = ------ = ---------
6 2 1
Answer:
X = 35 inches/ Therefore the Total length is 35 inches. //
===============================================
Please feedback!
===============================================
Number Series Problem:
================
.025 0.125 .0625 ____
Ano ang sa inyo? Ang sa 'kin ay:
0.3125 <------ my answer!
=================
what you think?
Try to solve this: (As given by my friend JOSEPH - this also came out in the exam)
ReplyDeleteProb:
A boy is to meet his teacher in the principal's
room at 7:30 in the morning. If it takes the boy
30 min. to take a bath, 15 min. to eat his breakfast, 5 min. to brush teeth, 20 min. other morning activities, 25 min. to dress up and 10 min. walking to the School Principal's Room, what will be the latest time he can?
===================================
just share your opinions, corrections or solutions! Thanks!
This comment has been removed by the author.
DeleteJust as I received this SMS:
ReplyDelete============================
From Joseph:
sir gud pm, sori karon lang ko kareply kay
nakatulog ko. The one u posted in FB (or here)
is exactly what came out in the CS Exam!
---- joseph
Prob:
ReplyDeleteA boy is to meet his teacher in the principal's
room at 7:30 in the morning. If it takes the boy
30 min. to take a bath, 15 min. to eat his breakfast, 5 min. to brush teeth, 20 min. other morning activities, 25 min. to dress up and 10 min. walking to the School Principal's Room, what will be the latest time he can?
--i think its 5:45am?
This comment has been removed by the author.
ReplyDeleteFor Ms Faye:
ReplyDeleteMay 28, 2012 // 12:02 nn
We are also so confident that your answer is correct as per
solution that we can show:
Total Number of Minutes to consider before 7:30am is that
Earlier than 7:30am, we have total number of minutes
for activities that the boy undertook:
Take a Bath = 30 min.
Breakfast = 15 min.
Brush Teeth = 5 min.
other Morning Activities = 20 min.
Dress up = 25 min.
Walking time going = 10 min.
......................---------------
Total 105 min.
or = 1 hour and 45 min.
========================
Then take note:
6:30am to 7:30am = 1hour
5:45am to 6:30am = 45 min
---------------------------
= 1hour and 45 min.
Therefore, the latest time he can is: 5:45 A. M.
===============================================
// ANSWER: 5:45 A.M.
===================
How about some others, what are their solutions?
Thanks Faye for contributing!
--- ENGR. JONATHAN E. SIHAY
June 05, 2012
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ReplyDeletehttp://www.facebook.com/sheryl.ganzanolaco and
Jane Asis Cabugsa (Maramag Bukidnon)
This is of good help.By keep on posting such kind of problem i guess everybody will learn.Thank you for posting this.
ReplyDeleteMath Tutorials in the Philippines
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--- jonsi
12 March 2013 Philippines
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=====================
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