Wipro Company Numerical Ability Arithmetic

In a certain brick wall, each row of bricks above the bottom row contains one less brick than the row just below it. If there are 5 rows in all and a total of 75 bricks in the wall, how many bricks does the bottom row contain?
A. 14
B. 15
C. 16
D. 17
E. 18

Read Solution (Total 2)

It's d)17
11 years agoHelpfull: Yes(1) No(0)

n+(n-1)+(n-2)+(n-3)+(n-4)=75
5n=75+10=85
n=17
5 years agoHelpfull: Yes(0) No(0)

Wipro Other Question

Last year Manny received 26 paychecks. Each of his first 6 paychecks was $750; each of his remaining paychecks was $30 more than each of his first 6 paychecks. To the nearest dollar, what was the average (arithmetic mean) amount of his paychecks for the year ?
A. $752
B. $755
C. $765
D. $773
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A. 10/3
B. 7/3
C. 3
D. 5/2
E. 3/2