TCS Company Numerical Ability Time and Work

A,B,C can do some work in 36 days. A and B together can do twice as much work as C alone, and A and C together cand do thrice as much work as B alone. Find the time taken by C to do whole work?
Option
a) 96 days
b) 108 day
c) 120 days
d) 72 days

Read Solution (Total 3)

GIVEN,
1: 1/A+1/B+1/C=1/36
2: 1/A+1/B=2/C
FROM 1 & 2,
1/C=1/108
answer 108 days
10 years agoHelpfull: Yes(24) No(0)

(1/A)+(1/B)+(1/C)=1/36
1/A+1/B=2/C

so 1/C=1/108
c=108
10 years agoHelpfull: Yes(1) No(0)
c will take 108 days
10 years agoHelpfull: Yes(0) No(3)

TCS Other Question

In how many possible wasy can write 3240 as a product of 3 positive integers a,b and c.
Option
a) 450
b)420
c)350
d)320
George and mark work for a comapny. George can finish a certain job in 30 days. Mark can finish the same job in 45 days. A project was taken by the company and George was made superior to Mark. This move from the company was not liked by mark. So Mark did not work for 15 days. Find the total number of days the entire work was completed if Mark works at his normal speed after 15 days from the date of commencement?
Option
a) 15
b) 20
c) 35
d) 24