The average height of four girls was recorded as 150 cm. If the average of the heights of three girls out of the four was 148 cm. What was the height of the fourth girl ? ?->(Show Answer!)

1. The average height of four girls was recorded as 150 cm. If the average of the heights of three girls out of the four was 148 cm. What was the height of the fourth girl ?

Write Comment

Comments

By: anil on 05 May 2019 01.19 am

The average height of the four girls is 150 cm.
Hence, the total height of the four girls is 150*4 = 600 cm. The average height of three of the four girls is 148 cm.
Their total height is 148*3 = 444 cm Hence, the height of the fourth girl is 600-444 = 156 cm

Tags

Show Similar Question And Answers

QA->If it is 4 P.M. on Monday at 150°W; what will be the time at 150°E?....

QA->If it is 4 P.M. on Monday at 150°W, what will be the time at 150°E ?....

QA->Pakistani Girl who has been awarded by World Peace and Prosperity Foundation for her bravery and advocation of education for girls in adverse conditions in Swat, Pakistan?....

QA->Improve enrolment and retention of girl children in Schools & raise the age at marriage of girls are the main objectives of?....

QA->Blasphemy charges against a Christian girl in Pakistan have been officially dropped by the country"s Supreme Court recently. Name that Christian girl?....

MCQ-> Read the following passage carefully and answer the questions. Certain words/phrases are given in bold to help you locate them while answering some of the questions. Until the 1960s boys spent longer and went further in school than girls, and were more likely to graduate from university. Now, across the rich world and in a growing number of , poor countries, the balance has tilted the other way. Policymakers once fretted about girls’ . lack of confidence in science but this is changing. Sweden has commissioned research into its “boy crisis”. Australia has devised a reading programme called “Boys, Blokes, Books and Bytes”. In just a couple of generations, one gender gap has closed, only for another to open up. The reversal is laid out in a report published on March 5th by the OECD. a Paris based Rich country thinktank. Boys’ dominance just about endures in maths: at age 15 they are, on average, the equivalent of three months’ schooling ahead of girls. In science the results are fairly even. But in reading, where girls have been ahead for some time, a gulf has appeared. In all G4 countries and economies in the study, girls outperform boys. The average gap is equivalent to an extra year of schooling. The OECD deems literacy to be the most important skill that it assesses, since further learning depends on it. Sure enough, teenage boys are 50% more likely than girls to fail to achieve basic proficiency in any of maths, reading and science. Youngsters in this group, with nothing to build on or shine at, are prone to drop out of school altogether. To see why boys and girls fare so differently in the classroom, first look at what they do outside it. The average 15year old girl devotes five and half hours a week to homework, an hour more than the average boy, who spend more time playing video games and trawling the internet. Three quarters of girls read for pleasure, compared with little more than half of boys. Reading rates are falling everywhere as screens draw eyes from pages, but boys are giving up faster. The OECD found that, among boys who do as much homework as the average girl, the gender gap in reading fell by nearly a quarter. Once in the classroom, boys long to be out of it: They are twice as likely as girls to report that school is a “waste of time”, and more often turn up late. Just as a teacher sused to struggle to persuade girls that science is not only for men, the OECD now urges parents and policymakers to steer boys away from a version of masculinity that ignores academic achievement. Boys’ disdain for school might have been less irrational when there were plenty of jobs for uneducated men. But those days have long gone. It may be that a bit of swagger helps in maths, where confidence plays a part in boys’ lead (though it sometimes extends to delusion:12% of boys told the OECD that they are familiar with the mathematical concept of “subjunctive sealing”, a red herring that fooled only 7% of girls.) But their lack of self Visit discipline drives teachers crazy. The OECD found that boys did much better in its anonymised tests than in teachers assessments. What is behind this discrimination? One possibility is that teachers mark up students who are polite, eager and stay out of flights, all attributes that are more common among girls. In some countries, academic points can even be docked for bad behaviour.Choose the word which is opposite in meaning to the word DOCKED given in bold as used in the passage.
....

MCQ->The average height of four girls was recorded as 150 cm. If the average of the heights of three girls out of the four was 148 cm. What was the height of the fourth girl ?....

MCQ-> Instructions: Read the following information carefully to answer the questions given below. In a college, 150 students of MBA are enrolled. The ratio of boys and girls is 7 : 8 respectively. There are three disciplines namely marketing , HR and finance in the college. In marketing discipline there are 50% girls of their total number and the boys are 40% of their total number. In HR discipline, girls are 30% of their total number. Finance discipline has girls, 20% of their total number and boys 30% of their total number. 7 boys and 9 girls are in HR and marketing both. 6 boys and 7 girls are in HR and finance both. 5 boys and 8 girls are in marketing and finance both. 2 boys and 3 girls are enrolled in all three disciplines.What percentage of students are enrolled in all three disciplines?
....

MCQ-> Question Numbers: (55 to 58)In a square layout of site 5m ~ 5m 25 equal-sized square platforms of different heights are built. The heights (in metre) of individual platforms are as shown below:

Individuals (all of same height) are seated on these platforms. We say an individual A can reach individual B, if all the three following conditions are met; (i) A and B are In the same row or column (ii) A is at a lower height than B (iii) If there is/are any individuals (s) between A and B, such individual(s) must be at a height lower than that of A. Thus in the table given above, consider the Individual seated at height 8 on 3rd row and 2nd column. He can be reached by four individuals. He can be reached by the individual on his left at height 7, by the two individuals on his right at heights of 4 and 6 and by the individual above at height 5. How many individuals in this layout can be reached by just one individual?
....

MCQ-> A school consisting of a total of 1560 students has boys and girls in the ratio of 7:5 respectively. All the students are enrolled in different types of hobby classes, viz: Singing, Dancing and Painting.One-fifth of the boys are enrolled in only Dancing classes.Twenty percent of the girls are enrolled in only Painting classes.Ten percent of the boys are enrolled in only Singing classes.Twenty four percent of the girls are enrolled in both Singing and Dancing classes together.The number of girls enrolled in only Singing classes is two hundred percent of the boys enrolled in the same.One-thirteenth of the boys are enrolled in all the three classes together.The respective ratio of boys enrolled in Dancing and Painting classes together to the girls enrolled in the same is 2 :1 respectively.Ten percent of the girls are enrolled in only Dancing classes whereas eight percent of the girls are enrolled in both Dancing and Painting classes together.The remaining girls are enrolled in all the three classes together.The number of boys enrolled in Singing and Dancing classes together is fifty percent of the number of girls enrolled in the same.The remaining boys are enrolled in only Painting classes.What is the total number of boys who are enrolled in Dancing ?
....