TCS Company Category

11. 1032A book is published once in every 10 years starting from its origin, sum of the first ten years in which the book is published is 19560, then the year in which the first copy of the book was printed is
a. 1909
b. 1910
c. 1911
d. 1912

Read Solution (Total 5)

1st yr= a
10th yr = a+(n-1)d= a+(10-1)*10=a+90

Sn= 10*[a+(a+90)] /2 = 10a+450

10a+450 = 19560
10a=19110
a=1911
9 years agoHelpfull: Yes(5) No(0)

1911
from 1911 ,1921,1931,count up to 2001
9 years agoHelpfull: Yes(1) No(2)
1910, sum of 10 years must be divisible by 10
9 years agoHelpfull: Yes(0) No(1)
ans is 1910.
9 years agoHelpfull: Yes(0) No(0)
1909 is th answr
9 years agoHelpfull: Yes(0) No(0)

TCS Other Question

10. Two friends start travelling from A and B simultaneously towards each other with speeds 50 kmph and 60 kmph respectively. After meeting each other the second person travels a distance of 120 km more than that of the first person. What is the distance between A and B.?
a. 1230
b. 1320
c. 1023
d. 1024
12. In a constituency 60% of the voters are in favor of party A and the rest are in favor of party B. On the day of election 75% of the voters who are in favor of party A voted for it, and 20% of the voters who are in favor of party B voted for party A. Then the total % of voters who voted for party A is :
a. 33%
b. 43%
c. 53%
d. 95%