Question
‘A’ alone can complete a work in 60 days while
‘A’ and ‘B’ together can complete the same work in 42 days. How much percentage of the work, ‘B’ alone can complete in 63 days?Solution
Let the total work = L.C.M of 60 and 42 = 420 units Then, efficiency of ‘A’ alone = 420 ÷ 60 = 7 units/day Combined efficiency of ‘A’ and ‘B’ = 420 ÷ 42 = 10 units/day So, efficiency of ‘B’ = 10 – 7 = 3 units/day So, work done by ‘B’ alone in 63 days = 3× 63 = 189 units So, percentage of work completed by ‘B’ = (189 ÷ 420) × 100 = 45%
Find the next term / numbers in the given series?
54, 46, 40, 36, ?
- Study the given pattern carefully and select the number that can replace the question mark [?] in it.
First row: 11, 7, 1274
Second row: 9, ... Study the given pattern carefully and select the number that can replace the question mark (?) in it.
First row: 14, 12, 108
Second row:...
In the following expression find the missing term:
A series is given with two terms missing. Choose the correct alternatives from the given ones that will come in the place of blanks respectively and com...
UDGO : FWTL : : MXRC : ?
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
What will come in the place of question mark?
Find the missing number.
E/M ∶ 20/156: : G/O: ?
