Question
If Riya takes three times the time that Mahi takes or four
times the time that Neha takes to finish a task, and all three working together can complete it in 3 days, how much time will Mahi need to complete the task alone?Solution
ATQ;
Let time taken by Riya alone to finish the work = 12x
Time taken by Mahi alone to finish the work = 4x
Time taken by Neha alone to finish the work = 3x
Let total work = LCM of 12x, 4x, and 3x = 12x
Part of work done by Riya, Mahi, and Neha alone in 1 day is 1 unit, 3 units, and 4 units respectively.
Total time taken to finish the task by all the 3 persons together = 3
12x / (1 + 3 + 4) = 3
x = 1.5
Time taken by Mahi alone to finish the work = 4x = 6 days
3/7 Of 504 ÷ 12 + 17 = √?
68% of 450 – 1008 ÷ 14 + 516 ÷ 43 =?
1000÷ 250 = ( 3√? × √1444) ÷ ( 3√512 × √361)
3/7 of 686 + 133(1/3)% of 33 – 69 =?
What will come in the place of question mark (?) in the given expression?
1020 ÷ 51 × 5 + 540 of 25% - 10 = ?2Â
180 ÷ 3 of 2 = 102 – ?
If a nine-digit number 389x6378y is divisible by 72, then the value of √(6x + 7y) will be∶
What will come in the place of question mark (?) in the given expression?
(144 × 16 ÷ 12) × 6 = ?Â
(?)2 = {(26% of 35% of 3000) ÷ 3} × 91
- What will come in place of (?) in the given expression.
625 + 196 – √256 = ?
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