A school 70%of the total are the girls and the number of boys is 510 find the total number strength?
quickly find the answer or:quickly find the answeror:What do you mean by \"quickly find the answer\"? You need to learn simple arithmetic, and that ta
quickly find the answer
or:quickly find the answer
or:What do you mean by \"quickly find the answer\"? You need to learn simple arithmetic, and that takes a bit of time and concentration. Get a ruler in your hands. Measure things until you start to understand how a ruler works. Measure some stuff and figure out where the center is. Say you measure a book and it's 7/8\" thick. You look at your ruler and see that every eighth is divided into two sixteenths, so obviously half of 7/8\" is going to be 7/16\". If you write that out you have 1/2 x 7/8 = 7/16. And you notice that 1/2 is divided into 2/4 and then into 4/8 and so on, so you can convert anything to anything by multiplying all the numbers on top and then all the numbers on bottom.Other rulers are divided into 10 and 100 parts. But an inch is still an inch, so anything on one ruler can be translated to the other ruler. A half inch on one ruler is 5/10 or 50/100 on the other. An eighth inch is just 12.5 marks when you have 100 marks per inch. A metric ruler divides an inch into 25.4 parts, so a half inch would be 12.7 of those parts. Pretty simple, isn't it? Practice this a bit and people will think you went to wizard school.Percent is simply a ruler with 100 marks. The only confusion is trying to keep track of what the marks represent. If you will practice this, the answer to your question will become obvious to the point you can work it in your head.
or:70% girls 30% boys 510I would almost make it super easy and just say hey... what is 1%... well that is 1/30 of the boys(1/30)510 = 51/3(30+21)/310+919 is 1%19*701330 girls at the school
