Speed Mathematics

sahulions

2015-03-11 18:29:38

Let the total book is 1 part

then, after 1st week remaining part = (1-7/13) = 6/13

after 2nd ----- =(6/13-6/13*5/9)=(6/13-10/39)=8/39

so basically 8/39=96

so 1 = 96*39/8

=12*39

=39(10+2)

=390+78=468.

then, after 1st week remaining part = (1-7/13) = 6/13

after 2nd ----- =(6/13-6/13*5/9)=(6/13-10/39)=8/39

so basically 8/39=96

so 1 = 96*39/8

=12*39

=39(10+2)

=390+78=468.

Jay

2015-01-11 22:45:35

Let the total number of pages be x

Pages read in first week = 7x/13

remaining pages = x -7x/13 = 6x/13

5/9 of 6x/13 pages were read in second week. ie, 30x/117 pages.

remaining pages = 6x/13 - 30x/117 = 24x/117

24x/117 = 96

x/117 = 4

Pages read in first week = 7x/13

remaining pages = x -7x/13 = 6x/13

5/9 of 6x/13 pages were read in second week. ie, 30x/117 pages.

remaining pages = 6x/13 - 30x/117 = 24x/117

24x/117 = 96

x/117 = 4

**x = 468**
saurabh

2014-11-05 14:54:11

For a square ABCD, angle BAC + angle ACD is equal to

(1)45° (2)60°(3)90° (4)130°

(1)45° (2)60°(3)90° (4)130°

mangai

2015-11-04 06:32:02

The option is 45 degree. in the square, each angle is 90 degree and required answer for diagonal. so it is 45 degree.

Sam

2015-11-04 07:59:59

it is 90 degree only. BACis 45 degree and ACD is 45 degree. their sum is 90 degree.

Shahista

2015-08-01 04:29:05

Actually the correct answer is 90 degree. Many people may be getting wrong just because of wrong diagram. correct the diagram and then see the correct answer u would get.

Aamir

2015-05-09 12:33:12

answer should be 180 as every angle of a square is 90 degree

so by adding two angles it should be ( 90+90)=180

so by adding two angles it should be ( 90+90)=180

Add a new comment... (Use Discussion Board for posting new aptitude questions.)

Name:

Email: (optional)

6 + 2 =
(please answer the simple math question)

Post Your Comment