marq

Dr. Charles Simonyi is the Father of Modern Microsoft Excel                                           JavaScript was originally developed by Brendan Eich of Netscape under the name Mocha, later LiveScript, and finally renamed to JavaScript.                                           The word "Biology" is firstly used by Lamarck and Treviranus                                           Hippocrates (460-370 bc) is known as father of medicine.                                           Galene, 130-200 is known as father of Experimental Physology                                           Aristotle (384-322 BC) is known as Father of Zoology because he wrote the construction and behavior of different animals in his book "Historia animalium"                                           Theophrastus(370-285 BC) is known as father of Botany because he wrote about 500 different plants in his book "Historia Plantarum".                                           John Resig is known as Father of Jquery -                                          HTML is a markup language which is use to design web pages. It was invented in 1990 by Tim Berners-Lee.                                                                The Google was founded by Larry Page and Sergey Brin.                                                                Rasmus Lerdorf was the original creator of PHP. It was first released in 1995.                                                               Facebook was founded by Mark Zuckerberg                                                               Bjarne Stroustrup, creator of C++.                                                                Dennis Ritchie creator of C                                                                                                                              James Gosling, also known as the "Father of Java"                                          At 11.44%, Bihar is India's fastest growing state                                          Father of HTML -Tim Berners Lee                                          orkut was created by Orkut Büyükkökten, a Turkish software engineer                    Photoshop: It came about after Thomas Knoll, a PhD student at the University of Michigan created a program to display grayscale images on a monochrome monitor which at the time was called 'Display'.

Percentage


1. 
A batsman scored 110 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets?

Explanation:

Number of runs made by running = 110 - (3 x 4 + 8 x 6)
= 110 - (60)
= 50.

 Required percentage =50x 100% = 455%
11011


2. 
Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. The marks obtained by them are:












Explanation:
Let their marks be (x + 9) and x.
Then, x + 9 =56(x + 9 + x)
100

 25(x + 9) = 14(2x + 9)
 3x = 99
 x = 33
So, their marks are 42 and 33.









3. 
A fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally, he had:


Answer: Option D
Explanation:

Suppose originally he had x apples.
Then, (100 - 40)% of x = 420.

60x = 420
100


 x =420 x 100  = 700.
60







4. 
What percentage of numbers from 1 to 70 have 1 or 9 in the unit's digit?



Explanation:

Clearly, the numbers which have 1 or 9 in the unit's digit, have squares that end in the digit 1. Such numbers from 1 to 70 are 1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69.
Number of such number =14

 Required percentage =14x 100% = 20%.
70




5. 
If A = x% of y and B = y% of x, then which of the following is true?


Answer: Option E
Explanation:


x% of y =xy=yxy% of x
100100

 A = B.





6. 
If 20% of a = b, then b% of 20 is the same as:

Explanation:


20% of a = b      20a = b.
100


 b% of 20 =bx 20=20a x1x 20=4a = 4% of a.
100100100100




No comments:

Post a Comment