IBM
Company
Numerical Ability
Time and Work
A can do a work in 6 days , B can do a work in 8 days and C can do it in 12 days. B left work after 6 days. For how many number of days should A and C should work together to complete the remaining work ?
Read Solution (Total 9)
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- i think one day.
b work 1/8 * 6=3/4
remaining work =1-3/4=1/4
a and c work together =1/6+1/12=3/12=1/4
take reciprocial 4 * remaining work =4 *1/4=1 - 11 years agoHelpfull: Yes(26) No(0)
- A complete work in 6 days
B complete work in 8days
C complete work in 12 days
B's 1 day work=1/8
6 day's work=6/8
remaining work=1-6/8=2/8=1/4
A+C 1 day work together = 1/6+1/12=1/4
so A and C work 1 day to complete remaining work
ans. 1 day - 11 years agoHelpfull: Yes(20) No(0)
- lcm of 6,12,8 is 48 ie units
a 1 day =8
b 1day =6
c 1day=4units
3DAY WORK OF (A+B+C)=18
6day work of (A+B+C)=36
THUS REMAING WORK WILL IE 12 UNIT WILL BE COMPLETD BY AND C IN=12/12=1DAY - 10 years agoHelpfull: Yes(4) No(0)
- 1/6+1/8+1/12=3/8
3/8 work is done in 3 days
therefore 1 day work = 1/8
6day work = 3/4
remaining work = 1-3/4
1/4
for 1/4 work no. of days required by 'A' 'C' is 1 day - 11 years agoHelpfull: Yes(2) No(0)
- 1/6+1/12-1/8=8+4-6/48=1/8
remaining the work:8*1/8=1 day - 10 years agoHelpfull: Yes(2) No(2)
- my ans is 1 day
- 11 years agoHelpfull: Yes(1) No(1)
- b work is 6(1/8) means total 6days work is 6/8
remaining work is 1-(6/8)=2/8
that is 1/4 work remaining
both a n c complete the work is 4(1/6+1/12)=1 day
ans is 1day - 11 years agoHelpfull: Yes(1) No(0)
- it will be 1
- 10 years agoHelpfull: Yes(1) No(0)
- 26 because A in 6 so B in 10 and C in 16
- 10 years agoHelpfull: Yes(0) No(9)
IBM Other Question
How many 5's are there in the number 121122123...till 356
What is the next number of the following sequence
1) 7/6,3/2,1,5/6,13/6,5/2,?
2) 0,1,2,0.5,2,2,2,2,4,3,2,?
3) 5,6,6,5,6.5,8,7,9.5,?