## 2013/06/25

### Easy mathematics solution Methods be SMART

Label:
Easy Math

**Easy mathematics solution Methods**give shape and how to solve math problems easily

We will give examples of questions and answers and I'll look carefully can be understood by the reader, thoroughness is a concentrated form of our brain.

**Question :**Write the prime factors of 204

**solution :**

204 = 2X2X2X3X17 so, the prime factors of 204 are 2.3 and 17

**Question :**Write down the set of even integers between -8 and 8

**Easy math solution :**

the set of even numbers between -8 and 8 [-6, -4, -2,0,2,4,6]

**Question :**[24/29] = [24/37] / [29X k], then k = ......

**Easy math solution :**

k = [24X37] x 29] / 29 X24

k = 37

**Question :**[17 X n] + [105: 15] = 109, then n = .......

**solution :**

[17x n] + 7 = 109

[17 X n] = 109-7

n = 102/7

n = 6

**Question :**- 25 + [-17] - 8 = n +25, price (n) = ......

**solution :**

- 50 = n + 25

n = - 50-25

n = -75

**Question :**A money: money b = 2 : 1, while the money A: money C = 2 : 1, what is the ratio of money A : money B : money C ?

**solution :**

For example, A = 2k, money b = k, then A money : money C = 2 : 1

Money C = 1/2 X money A = 1/2 X 2k = k

so comparison, money A: B money: money C = 2k : k : k = 2 : 1 : 1

**Question :**Old price of an item is 28,000,00. new price is 35,000,00. What percentage increase in such goods.

**solution :**

increase in price = new price - old price

price increase = 35,000,00 - = 7,000,00 28,000,00

so, the percent increase in the price of goods

= Increase in price of goods / old price x 100%

= 7,000,00 / 28,000,00 X 100% = 25%

**Question :**Resident of the city of 600,000 people. 60% of the population were male and 40% female of number of males are boys and 10% of boys the same as the number of girls. what is the number of men, boys, women and girls?

**Easy math solution :**

men = 60% x 600,000 = 360,000 souls

boys = 20% x 360,000 = 72,000 souls

women = 40% x 600,000 = 240,000 souls

girls = 10% x 72,000 = 7,200 souls

**Question :**the amount of savings in the bank john is 85,000,00. interest money in the bank in the first year is 2.5% a month. The next year the interest money fell to 1.5% a month. what is the total amount of interest money in the bank john after saving up for 3 years?

**Easy math solution :**

money = 85,000,00

rate = 2.5% X 12 X 85,000,00 + 1.5% X 24 X 85,000,00

= 12 X 85,000,00 [2,5 / 100 + 1.5 / 100 x 2]

= 1,020,000,00 [5,5 / 100]

= 56,100,00

= 85,000,00 + 56,100,00 = 141,100,00

This is just a little example

**Easy mathematics solution Methods.**

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