Skip to main content

Aptitude Day 69


Ratio and Proportion:

1. If x:y = 2:3, find (3x+4y) : (3x+3y).

Solution:
                x/y = 2/3   [Given]

               (3x+4y)/(3x+3y)

               Dividing both numerator and denominator by y, we get
               [3(x/y)+4 ] / [3(x/y)+3]
               = [3(2/3)+4 ] / [3(2/3)+3]
               = 6/5.
           
2. Divide 560 in the ratio 3:2.

Solution:
                The sum of the ratio is 3+2 = 5.

                First part = 3*(560/5) = 3*112 = 336.
                Second part = 2*(560/5) = 2*112 = 224. 


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