Question
Aman, Rahul and Pratik working together completed a job
in 10 days. The ratio of their efficiencies is 5: 4 : 3. How many days will be required by the fastest worker alone to complete the whole work?Solution
Ratio of efficiencies = 5 : 4 : 3 Ratio of time required = 1/5 : 1/4 : 1/3 = 12 : 15 : 20 Suppose Aman, Rahul and Pratik complete the work in 12x, 15x, 20x days respectively. Then, 1/(12 x) + 1/( 15 x) + 1/( 20 x) = 1/10 (5x+4x+3x)/60x = 1/10 12/60x = 1/10 x = (12×10)/60 = 2 days Hence, the fastest worker Aman can complete the work = 12x = 12 × 2 = 24 days
Select a suitable figure from the answer figures that would replace the question mark (?) from question figure.
65 : 31 :: 72 : ? :: 34 : 19
Select the option in which the numbers share the same relationship as that shared by the numbers in the set given below:
(480, 238, 484)
- 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
AG... In the following question, select the related word from the given alternatives.
Cold: Ice :: Hot: [?]
If 95 × 24 = 8, 48 × 24 = 6, 37 × 22 = 6, then 67 × 33 = ?
Select the option that is related to third letter cluster in the same way as second letter cluster is related to first letter cluster.
WIN: DPU:: FAT: ?
Select the option that is related to the third number in the same way as the second number is related to the first number.
64 : 224 :: 98 : ?
Who sits adjacent to S?
Drake : Duck : : Wizard : ?Â
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