Skip to main content

Aptitude Day 167

Problems on Average:

1. A grocer has a sale of 4005, 4500, 4900 and 3995 for 4 consecutive months. How much sale must he have in the 5th month so that he gets an average sale of 5000?

Solution:
                The Sum of the sale of 4 months = 17400. (4005+4500+4900+3995 = 17400)

                The Sum of the sale of 5 months = 5000*5 = 25000.

                The sum required in the 5th month in order to reach the average sale= 25000-17400 = 7600.

2. A company produces on an average 7600 items per month for the 1st 5 months. How many items it must produce on an average per month over the next 7 months, to average 5500 items per month over the whole?

 Solution:
                  [(5500*12) – (7600*5)] / 7 = (66000-38000)/7
                                                              = 28000/7
                                                              = 4000.


Comments

Post a Comment

Popular posts from this blog

Aptitude Day 332

Answers of Day 331: 1. 450%.                                     2. 10.   Problems on Percentage: 1. 0.001 is what percent of 0.01? Solution:                   0.001/0.01 * 100 = 1/10* 100                                               = 10%. 2. A fruit seller had some apples. He sells 20% apples and still has 500 apples. Originally, he had: Solution:                (100-20)% of x = 500                80/100*x = 500                x = 625.
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