Question
P alone can finish a piece of work ‘M’ in 6 days
while Q takes 3 days to finish it alone. P, Q and R working together can finish the work ‘N’ which is 12 times of work ‘M’ in 6 days. How long will R take to finish work ‘N’, when working alone?Solution
Let the work ‘M’ = 6 units (LCM of 6 and 3) Efficiency of P = 6/6 = 1 units Efficiency of Q = 6/3 = 2 units Efficiency of P, Q and R = (6 × 12)/6 = 12 units per day Efficiency of R = 12 – (1 + 2) = 9 units per day Time taken by R to finish work ‘N’ = 72/9 = 8 days
Solve the given equation for ?. Find the approximate value.
[(49.88% of 320.11) × (34.85% of 460.24)] ÷ √783.94 = ?
(24.78 × 11.67) + (7199.67 ÷ 14.99) = ? × 12.65
‘A’ and ‘B’ can build a wall in 8 days and 12 days, respectively. If ‘A’ started building the wall alone but after 4 days he was replaced by...
17.06 2 + √36.08 – (4.04/2.99) × 3.02 × 4.92 = ? × 4.99
What approximate value will replace the question mark (?) in the following?
24.99...
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
√? + √626 × 13.998 - 6.02 × 2.97 = 345.995
19.89% of 449.67 + 14.67% of 299.89 - 9.89% of 99.79 = ?
What will come in the place of question mark (?) in the given expression?
?2 = {40% of (552 – 352 )} – 44
