Question
Three pipes P, Q and R can fill a cistern in 40 minutes, 80 minutes and 120 minutes, respectively. Initially, all the pipes are opened. After how much time (in minutes) should the pipes Q and R be turned off so that the cistern will be completely filled in just half an hour?
More Previous year papers Questions
- Fifty solid metallic cubes, each having 2 m long edges, and ten solid cuboids, each having dimensions 5 m × 4m × 3m are melted and a big solid cube is form...
- A shopkeeper sells a product at a price of Rs 1,368 and earns 12.5% profit. What will be the amount equal to half of the purchase price of the product.
- If (11aᶾ – 15bᶾ ) : (10aᶾ + 4bᶾ ) = 5 : 7, then (9a + 5b) : (5a – 3b) is equal to:
- Aman has appeared in two exams. He scored 420 marks in first exam out of 600 marks. If he got overall 70 percent marks, then how much percentage he had sco...
- The solid spheres of radius 3 cm, 4 cm and 5 cm are melted and recasted into a solid sphere. What will be the percentage decrease in the surface area?
- A hemispherical bowl of internal radius 15 cm contains a liquid. The liquid is to be filled into cylindrical shaped bottles of diameter 5 cm and height 6 c...
- In week, the prices of a bag of rea were ₹350, ₹280, ₹340, ₹270, ₹360, ₹310 and ₹300. The range (in ₹) is:
- When a number x is divided by a divisor it is seen that the divisor = 4 times the quotient = double the remainder. If the remainder is 80 then the value of...
- What least number be subtracted from 13983 to make it a perfect square?
- In a circle with centre O, AB is a diameter and CD is a chord which is equal to the radius OC. AC and BD are extended in such a way that they intersect eac...
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)