Question
A alone can do a work in 30 days. B alone can do the
same work in 40 days. If they work on alternate days starting with A. then in how many days (correct up to two places of decimal) the work will be completed?Solution
A can do a work in 30 days B can do a work in 40 days Total work done by A & B both = LCM of 30 & 40 = 120 Efficiency of A = 120/30 = 4 Efficiency of B = 120/40 = 3 Work done by A on 1st day = 120/30 = 4 Work done by B on 2nd day = 120/40 = 3 Work done in first 2 days by A & B = 4 + 3 = 7 then, work done in (2 x 17 = 34) days by A & B = 17 x 7 = 119 ⇒ Remaining work will be done by A = (120 – 119)/4 = 1/4 day ⇒ Total time = 34 + 1/4 = 34(1/4) days ∴ The work will be done in 34(1/4) days
How many letters are there in the given series which are immediately followed by a number?
N 8 9 B @ A 7 % 8 N P @ P R N 9 @ B # 7 H 8
Hawa Mahal : Jaipur :: Victorial Mahal : (?)
Select the option in which the numbers are not related in the same way as are the number of the following set.
(520, 8, 56)
6 : 222:: 7 : ?
Bee : Hum :: ?
Select the option that is related to third number-cluster in the same way first number cluster is related to second number-cluster.
26: 40 :: 3...
NUCLEAR : DVOMSBF :: WEAPONS : BFXQTOP :: MISUSES : ?
- Select the option that is related to the third letter cluster in the same way as the second letter cluster is related to the first-letter cluster.
SWIT... Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
g _ _ t _ _ w g g _ _...
If SCRIBE= HXIRYV, then FURIOUS=
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