Question
Pipe A and B can fill the pool in 36 minutes and 48
minutes, respectively. Pipe C can empty half filled pool in 36 minutes. If all the pipes are opened together, then find the time taken to fill the empty pool completelySolution
Time taken by pipe C to empty the full pool = 36 × 2 = 72 minutes Let the capacity of pool = 144 units Number of units of water filled by pipe A alone in one minute = 144/36 = 4 units Number of units of water filled by pipe B alone in one minute = 144/48 = 3 units Number of units of water emptied by pipe C alone in one minute = 144/72 = 2 units Required time taken = 144/(4 + 3 – 2) = 28.8 minutes
2660.03 ÷ 94.98 x 59.9 = ? + 20.32
What approximate value will come in place of question (?) in the following given expression? You are not expected to calculate the exact value.
...
Find the approximate value of Question mark(?). No need to find the exact value.
(519.79 ÷ 10.03) × (47.98 ÷ 6) + √(63.94) × 4.04 = ?
...447.79 ÷ √(√2400) + 30.94 × 6.07 – 5.08 × 21.96 = ?
1131.98 + ? – 1125.04 = 1364.93 – 1168.01
11.11% of 1800.89 + 34.89 X 10.99 - 500.50 = ?
(3/7 of 1049.88 + 44.95% of 799.79) ÷ (√168.89 + 24.77% of 400.11) = ?
- 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.)
If a:(b+c) =3:9 and c:(a+b) =10:14 then find the value of b:(a+c)?
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