Skip to main content

Aptitude Day 77


Ratio and Proportion:

 1. If x/3 = y/7, then (x+4) : (y+9) is equal to:

Solution:
               x/y = 3/7
              (x+4)/(y+9) = (3+4)/(7+9)
                                    = 7/16.

2. If a/5 =b/2 = c/3, then (a+ b+ c)/b is equal to:

Solution:
              Let a/5 = b/2 = c/3 = x
              a= 5x, b= 2x and c= 3x

              (a+ b+ c )/ b = (5x+2x+3x) / 2x
                                     = 10x/2x
              (a+ b+ c )/ b = 5.

Comments

Post a Comment

Popular posts from this blog

Vocabulary Day 60

Incur Thesaurus: Verb :  arouse            acquire, earn, gain, include, get, obtain...  Antonyms :  lose, exclude ...  Example sentences:         ·        He is incurred in that game. ·        She incurs a great knowlegde in science.        
Post a Comment
Read more

Vocabulary Day 82

Flutter Thesaurus: Verb: wave rapidly            drift, agitate, dance, flicker, fluctuate, hover, oscillate, quiver, shake, vibrate...                                           Antonyms:  stay, remain, stay . ..  Example sentences:         ·        His heart flutters when he sees his crush.  ·       That incident causes a  flutter between them. 
Post a Comment
Read more

Aptitude Day 5

Answers of Day 4 :   1. 9                                   2. 5                                   3. 9                                   4. 8 To find the unit digit in the product. This is similar to the last model where we will find the unit digit of the sum. Example: 432*459*28*48=? Solution:  2*9=18 , 8*8=64, 4*8= 32. The unit digit of the total product is 2.  Problems to solve Find the unit digit of the product in the following 1. 404*397*810*21 =? 2. 24*42*36*78 =? 3. 81*82*89 =? 4. 72*36*98*47 =? See you tomorrow friends... Check out the answers over here  Aptitude Day 6
Post a Comment
Read more