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We can say that Let the efficiency of each boy and each girl be 'B' units/day and 'G' units/day, respectively. So, efficiency of a child = (G/0.50) = '2G' units per day According to the question, (18B + 12G) × 12 = (74B + 30G) × 3 Or, 216B + 144G = 222B + 90G Or, 6B = 54G Or, B = 9G Therefore, Total work = (18B + 12G) × 12 = (9 × 18G + 12G) × 12 = '2088G' units Combined efficiency of 8 boy, 5 Girl and 5 children = (8 × 9G) + 5G + (5 × 2G) = 72G + 5G + 10G = '87G' units per day Required time taken = (2088G/87G) = 24 days.
SERENE
Eructation
The arduous journey took a toll on the travelers.
Identify the incorrect sentence:
Using or containing more words than are needed
In each of the following sentences, choose the word similar in meaning to the bold word to fill in the blank.
The exquisite craftsmanship of...
Complete the sentences given in List-I with the appropriate words given in List-II :
Careful study that is done to find and report new knowledge about something
In the following question select the answer pair that expresses a relationship most similar to that expressed in the capitalised pair.
WOUND :...
showing excessive confidence or pride