Question

(a) 3 days
If Ramesh, Suresh and Harish can do a piece of work in 15 days, 10
days and 6 days respectively, how long will they take to do it, if all
the three work at it together ?
(Central Excise & I. Tax 1990)
(b) 31 days
3
(c) 320 days (d) 3 days
20
A and B can do a piece of work in 72 days ; B and C can do it in 120
days ; A and C can do it in 90 days. In what time can A alone do it ?
(a) 150 days
(b) 120 days (c) 100 days (d) 80 days
(Assistant Grade 1993)
A and B can do a piece of work in 5 days ; B and C can do it in 7 days,
A and C can do it in 4 days. Who among these will take the least time
(Hotel Management 1993)
(d) Data inadequa
(4 GA
f A, B and C together can finish a piece of work in 4 days ; A alone
can do it in 12 days and B in 18 days, then C alone can do it in:
a) 21 days (b) 16 days (c) 14 days (d) 9 days
if put to do it alone ?
(b) B
(C) C
(CI
199​

Answer 1

Answer:

a, b, c together can finish a piece of work in 4 days,,, a alone