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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%
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.
Three of the following words are alike in some manner and hence form a group. Which word does NOT belong to that group? (The words must be considered as...
Which two signs should be interchanged to make the below equation mathematically correct?
5 + 6 – 2 × 8 ÷ 4 = 30
Which two numbers should be interchanged to make the following equation equal?
16 + 8 × 24 ÷ 4 – 26 = 30
Rearrange the following jumbled sentences to make a meaningful one:
P: are inhibiting progress
Q: they look for creative
R: ...
‘Entertainment’ is related to ‘Television’ in the same way as ‘Warmth’ is related to ‘______’.
In the following question, select the missing number from the given series.
11, 17, 23, ?, 35
In the given figure, which number represents how many such pens are either new or blue, but not both?
In the word ‘PREPARATION’, if the consonants used are arranged in the alphabetical order from left to right, then which letter will come at the 4th ...
Deepika starts her evening walk facing north and walks for 2 km. Then, she takes a right turn and walks for another 2 km. Finally, she takes a left turn...