Thursday

September 18, 2014

September 18, 2014

Total # Posts: 13

**Maths**

Dear Steve, Thank you very much for your kind help. Can understand clearly. With regards, Surya
*March 7, 2012*

**Maths**

A moment ago, 80% of the children in a hall were girls. 48 girls and 2 boys left the hall. The remaining children were then told to form groups of 9. In each group, there were 2 boys. How many children were there in the hall first?
*March 7, 2012*

**Maths**

The Sentosa High School's telephone number is an eight digit number. The sum of the two numbers formed from the first three digits and the last five digits respectively 66558. The sum of two numbers formed from the first five digits and the last three digits is 65577. Find...
*February 23, 2012*

**Maths**

Dear Genius, Good day! The number of apples in a basket is between 60 and 120. If i put these apples into bags of 5, there will be a remainder of 1 apple. If i put these apples into bags of 8, there will be a remainder of 6 apples. Find the total number of apples in the basket...
*February 23, 2012*

**Maths**

The number of apples in a basket is between 60 and 120. If i put these apples into bags of 5, there will be a remainder of 1 apple. If i put these apples into bags of 8, there will be a remainder of 6 apples. Find the total number of apples in the basket. I managed to find out...
*February 15, 2012*

**Math**

There is a ratio of number of boys to girls 3:5. After adding 5 boys and 3 girls, the ratio become 5:7. How many girls were there at first?
*February 11, 2012*

**Math**

Thanks a lot Bosnian. Answer is exactly correct. Just wanted to provide the alternate method which got through Maths olympiad book.
*February 11, 2012*

**Math**

Initial: number of boys to girls 3:5 =3U:5U U means unit Later (3U +5): (5U +3) = 5:7 3U+5 5 ----- = --- 5U+3 7 Cross multiply 21U+35 = 25U+15 35-15 = 25U-21U 20 = 4U Therefore 1U =5 Initially girls are 5Units. So the answer is 25.
*February 11, 2012*

**Math**

There is a ratio of number of boys to girls 3:5. After adding 5 boys and 3 girls, the ratio become 5:7. How many girls were there at first?
*February 11, 2012*

**biology**

What are harmones? And their description
*August 27, 2011*

**engineering**

Civil engineering means the constructive based engineering
*August 21, 2011*

**chemistry**

1.why is potassium permanganate used in the process of distillation of water?
*September 28, 2010*

**Math 11**

sets
*September 9, 2007*

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