Let the total work be 60 units. {LCM 20, 30 and 60} So, efficiency of each man = (60/20) = 3 units/day And efficiency of each woman = (60/30) = 2 units/day And efficiency of each child = (60/60) = 1 unit/day Work to be done on each day = 60 ÷ 3 = 20 units Let number of men required to finish the work in 3 days be 'x'. So, (3 X x) + (2 X 2) + (4 X 1) = 20 Or, 3x + 4 + 4 = 20 Or, 3x = 12 So, x = 4 So, 4 men should join to finish the work in 3 days.
Select the combination of letters that when sequentially placed in the gaps of the given letter series will complete the series.
abc_dab_ _d_b_cdab_c_
Select the number combination of letters that when placed sequentially in the blanks of the given series will complete the series.
r _ t u _ w ...
Select the option that represents the letter that, when placed from left to right will come in the blanks below, will complete the letter sequence corre...
If all the alphabets of alphabetical series are numbered as 26-1 from A-Z then what is the sum of the numbers of letters of the word “ TAMARIND ”? ...
In the word ‘GRAPEVINE’, first all the vowels are arranged followed by consonants alphabetically, then if any word is possible to make with the fi...
What will come in the place of question mark?
Select the option that represents the letters that, when placed from left to right in the following blanks, will complete the letter-series.
N ...
Select the correct combination of the letters that when sequentially placed in the blanks of the given letter series will complete the series.
p ...
Select the combination of letter that when sequentially placed in the blanks of the given series will complete the series.
A _ _ D E _ B C D _ ...
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
P _ _ S T _ Q R _ T _ Q _ _ T
