Question
'P' and 'Q' can complete a task in 36 days together. If
'P' alone can do it in 60 days, how long would 'Q' take to finish the task alone?Solution
ATQ,
Let the total work be 180 units. {LCM (36 and 60)} So, combined efficiency of 'P' and 'Q' = 180 ÷ 36 = 5 units/day Efficiency of 'P' = 180 ÷ 60 = 3 units/day So, efficiency of 'Q' = 5 - 3 = 2 units/day So, time taken by 'Q' to do the work alone = 180 ÷ 2 = 90 days
More Time and work Questions
What will come in place of the question mark (?) in the following questions?
?= √(4 × ∛(16 × √(4 × ∛(16 ×…… ∝)) ) )
560 ÷ 14 × 3 – 25 = ?
What value will come in place of (?) question mark in the given expression.
√144 × √81 + 7² – 5³ = ?
56 x 8 – 65% of 40 = ? + 14 x √625
3(2/3) of 2(5/11) of 5(2/5) of 75 = ?
18 × 15 + 86 – 58 =? + 38
What value should come in the place of (?) in the following questions?
222 + 322 – 508 = ? * 5
25.6% of 250 + √? = 119
