Skip to main content

Aptitude Day 220

Answers of Day 219:    1. 10000
                                       2. 4.5


Problems on Surds and Indices:

1. (64)-1/2 - (-32)-4/5 is ?

Solution:
                 1/(82)1/2 -  1/(25)4/5

                = 1/8 - 1/16
       
                = 1/16.


2. (18)3.5 / (27)3.5 * 63.5 = 2x . Find x.

Solution:
                 (2*32)3.5 / (33)3.5 *(2*3)3.5


                 23.5 *37  * 1/310.5 * 23.5 * 33.5

                  27 =2x

                  Hence x = 7.
                 

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