1. John and Bryan started swimming from the opposite sides of a pool.
John was swimming at a constant speed of 1 m/s and Bryan was swimming at 0.75 m/s.
(a) How long did it take John to catch up with Bryan if the pool is 50 m long ?
(b) How many times would they have passed each other when John caught up with Bryan ?
2. The sum of three whole numbers, A, B, C, is 100.
the quotient remainder are 5 and 1 respectively when A is divided by B or when C is divided by A.
What are the values of A, B AND C ?
3. A string of 3 digits is written after the number 1992 to form a 7digit number
which can be divided by 2,3,5 and 11.
Find the smallest possible value of the 7digit number.
4. A total of 100 students sat for sa Mathematics test.
The average score for the boys was 60 and the average score for the girls was 70.
How many more boys than girls were there ?
Please solve it to me and I will donate 78.5629 $ (US Dollars) which is my current savings.I will save little by little and donate later when this organization will be helpful for me. Thank you.
Posted on Aug 05, 2017, by Sanchoroy 
Posted on Aug 06, 2017, by
Jcalamari


Thank you very much For your Help sir!
Posted on Aug 07, 2017, by
Sanchoroy


Please anyone solve 2nd and 3rd problems!
Posted on Aug 14, 2017, by
Sanchoroy

1. John is "in phase" with Bryan when their displacements from the start are a multiple of the length of a lap (100m). John starts at 0m, Bryan at 50m. John will reach 100m in 100 secs, while Bryan will travel 75m and reach 125m total displacement. John has just completed one full lap, and has clearly passed Bryan twice. Bryan remains halfway down the pool. So after another repetition of this, where John ends at 200m and Bryan at 200m; and this is in place of the fourth "passing." So they pass 3 times, and meet in 200 seconds.
a) 200 secs = 3 mins 20 secs
b) three
2.
this question is weird.
3.
this question is hard.
4.
this isn't a real math question (it doesn't have an answer or needs more information).
:D