Question
Ten women working nine hours a day complete a particular
job in 20 days. If an additional 20 women were employed and they all worked 12 hours a day, how many days would it take to finish the same task?Solution
Using men X days X hours = constant New number of women = 20 + 10 = 30 Let required number of days be 'x' So, (10 X 9 X 20) = (30 X 12 X x) Or, x = (10 x 9 x 20)/(30 x 12) =Â 5 Required number of days = 5 Hence, option b.
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
The mean of five two-digit numbers is 34. Among these five numbers, two are 'P' and 'Q'. If the digits of both 'P' and 'Q' are sw...
What approximate value should come in place of question mark (?) in the following equations?
39.9% of 1720 + 80.2% of 630 = 89.9% of 1280 + ?
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
35.1% of 1599 = ?–(449.96 ÷ 6.12) × 2
√31684.11 × √728.9 – (19.02)2 = ? × 4.99Â
52.08% of 645.92 + 1840% of 47.96 = ?
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