Question
Aman can complete a task in 12 days, while Bhanu alone
can complete the same task in 18 days. Aman starts the work alone and continues for 4 days. Then, Bhanu joins him, and they work together for the next 3 days. After that, Aman leaves, and Bhanu completes the remaining work alone. Determine how many days Bhanu worked alone to finish the task.Solution
ATQ; Let the total task be = 36 {LCM(18, 12)} Efficiency of ‘Aman’ = (36/12) = 3 units/day Efficiency of ‘Bhanu’ = (36/18) = 2 units/day task done by ‘Aman’ in 4 days = 3 × 4 = 12 units task done by ‘Aman’ and ‘Bhanu’ together in 3 days = 5 × 3 = 15 units Remaining task = 36 – 12 – 15 = 9 units Time taken by ‘Bhanu’ to complete the remaining task = 9/2 = 4.5 days
More Time and work Questions
√ [? x 11 + (√ 1296)] = 16
? = 6.25% of 240 + 252 + 172 – 16 × 17
436 × 794 – 68210 =? + 85730
?/4 ÷ 9/? = 15% of 800 + `1(2/3)` × `1(1/5)` × 1/2
16 × 14 + 30 × 21 = 14 × ?
60% of 250 + 14 × 10 - 210 = ?
What will come in the place of question mark (?) in the given expression?
30% of 520 + 16% of 1500 = ? + 244
33 × 5 - ?% of 250 = 62 - 6
140% of 9/8 of ? = 108% of 2800
