Question
A2 type ‘P’ pipes can fill
a tank in 375 hours, while B2 type ‘Q’ pipes can fill the same tank in 540 hours. (15A × 5B) type ‘P’ pipes can fill the same tank in how many hours? (Efficiency of a type P and a type Q pipe is same)Solution
A2 × 375 = B2 × 540
A2/B2 = 540/375
A2/B2 = 36/25
A/B = 6/5
A = 6B/5
(15A × 5B) type 'P' pipes = 15 × 6B/5 × 5B = 90B2
Required time = (B2 × 540)/(90 × B2) = 6 hrs
More Time and work Questions
What will come in the place of question mark (?) in the given expression?
? = 90% of 25% of (40 × 200) + 300
30% of 40% of 120% of 3500 = ? × 63
`(256/6561)(1/4) = ?`
What will come in the place of question mark (?) in the given expression?
√144 X √324 + ? = 83 + 31 X √16
(34.88% of 699.79) + 40.030 × 17.88 of 11.86 + 16.21 =? + (7.22)²
72.5% of 400 – 23.25% of 1020 = 105% of ?
5.45% of 1854 – 37.5% of 1096 = ? – 48% of 630
800 + 900 X (3)-2 - ? = 25 X 60 ÷ 2
? = 6.25% of 240 + 252 + 172 – 16 × 17
1500 ÷ 15 + 1000 ÷ √100 + ? = 250 * 3
