Question
There were 25 workers to complete a job in 10 days. But
after 4 days, 10 workers were reassigned. How many more days will be needed now?Solution
ATQ,
Assume efficiency of each worker = 'e' units/day
Total work = 25 × 10 × e = 250e units
Work completed in 4 days = 25 × 4 × e = 100e units
Work remaining = 250e - 100e = 150e units
Remaining workers = 25 - 10 = 15
Time needed = 150e ÷ (15 × e) = 10 days
Extra days = 10 - 6 = 4 days
23 45 89 155 ? 353
- What will come in place of the question mark (?) in the following series?
121, 115, 102, 82, 55, ? What value should come in the place of (?) in the following number series?
54, 81, 135, 216, 324, ?
What will come in place of the question mark (?) in the following series?
63, 92, ?, 158, 195, 224
24, 42, 60, ?, 96, 114
What will come in place of the question mark (?) in the following series?
17, 138, 307, 532, ?, 1182
246, 102, 202, ?, 174, 158
124, 147, 176, 207, 244, ?
The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
14, 15, 24, 49, 98, 179, ?
