Question
Person A can complete a certain task in 20 days, while
person B can finish the same task in x days. Together, they can complete the task in 12 days. Determine the value of x.Solution
Let total amount of work = 60 units (LCM of 20 and 12) Efficiency of ‘A’ = 60/20 = 3 units/day Efficiency of ‘A’ and ‘B’ together = 60 /12 = 5 units/day Efficiency of ‘B’ = 5 – 3 = 2 units/day So, x = 60/2 = 30 days
More Time and work Questions
Determine the simplified value of the given mathematical expression.
{(80% of 650 + 25 × 12) – 20 × ?} = 760
(342 – 20% of 5280) = ? ÷ 3
- What will come in place of (?) in the given expression.
(25% of 320) + (15% of 240) = ? √4761 ÷ 23 + √12769 = ? × 58
- What will come in the place of question mark (?) in the given expression?
5/13 × 104 + 1(2/9) × 198 = 133 + ?
40% are the passing marks. A student gets 250 marks yet fails by 38 marks. What is the maximum marks?
1360 ÷ 8 + 490 ÷ √49 + ? = 150 × 2
Find the value of 16 x [(8 - 5) of 12 ÷ 4].
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