Question
6 women and 4 children can complete a piece of work in
12 days. If 3 more women join them, they can finish 3/5 of the work in 6 days. Find the time taken by 18 women to complete the entire work.Solution
ATQ,
(6W + 4C) × 12 = (6W + 4C + 3W) × [1/(3/5)] × 6
(72W + 48C) = (9W + 4C) × (5/3) × 6
(9W + 4C) × 10 = 90W + 40C
So, 72W + 48C = 90W + 40C
48C - 40C = 90W - 72W
8C = 18W
1W = (8/18)C = (4/9)C
Now convert all to C:
(6W + 4C) = (6 × 4/9 + 4)C = (24/9 + 4)C = (24 + 36)/9 = 60/9 = 20/3 C
Work = (20/3 C) × 12 = 80C
Now, 18W = 18 × (4/9)C = 8C
So, time = 80C / 8C = 10 days
Select the number-cluster that is related to the third letter-cluster in the same way the first letter-cluster and fifth letter-cluster are related to ...
If 45 @ 15 = 18' and 28 @ 28 =19', then 48 @ 30 = ?'. What will come in place of question mark?
Find the odd set of numbers from the given alternatives?
New Jersey : Trenton:: Oman :?
Select the option that is related to the third number in the same way as the second number is related to the first number.
13 : 2366 :: 9 : ?
What does "ZK" stands for?
'14' is related to '182' by certain logic. Following the same logic, '21' is related to '420'. To which of the following is '34' related, following the...
Select the letter cluster from among the given options that can replace the question mark (?) in the following series.
FCE, KHJ, ?, URT, ZWY
In the following question, select the related word pair from the given alternatives.Â
Writer: Pen
Select the option that is related to the third number in the same way as the second number is related to first number and the sixth number is related t...
Relevant for Exams:
