Skip to main content

Aptitude Day 70


Ratio and Proportion:

1. If a=2b=3c, then a:b:c is:

Solution:
                 Let a=2b=3c = x
                a= x, b= x/2 and c= x/3.

                a:b:c = x : x/2 : x/3
                             1: 1/2: 1/3
                             6:3:2.

2. If a/3 : b/5 : c/7, then a:b:c is:

Solution:
                Let a/3 = b/5 = c/7 = x

                a =3x,  b = 5x and c = 7x.
                3x:5x:7x 

                3:5:7.

Comments

Post a Comment

Popular posts from this blog

Aptitude Day 47

Problem On Numbers 1. Three numbers are in the ratio 1:2:3 and their average is 180. What's the largest number? Solution:                 Let the numbers be x, 2x and 3x.                 x+2x+3x = 180                          6x = 180                            x = 30                The largest number is 3x = 90. Problem to solve: Three numbers are in the ratio of 4:2:3 and their product is 648. Find the smallest number. 
Post a Comment
Read more

Vocabulary Day 21

Stammer Thesaurus: Verb : stutter in speech, speak haltingly, speech defect           halt, hesitate, pause, stop, sputter... Antonyms : say quickly, pronounce, enunciate... Example sentences: ·          He was stammering when the teacher caught him red-handed. ·          One should avoid the stammering while delivering a speech. 
Post a Comment
Read more