An electric pump can fill a tank in 2 hours. Because of a leak in the tank, it was taking 2½ hours to fill the tank. The leak can drain all the water off the tank in how many hours?

An electric pump can fill a tank in 2 hours. Because of a leak in the tank, it was taking 2½ hours to fill the tank. The leak can drain all the water off the tank in how many hours?
1). 9
2). 10
3). $10\frac{1}{2}$
4). $11\frac{1}{2}$

SSC CGL Books

---

Join Telegram Group

Answer This Question
Name:
Email:
Answer :
Sum of (4+1)
Submit:

Other Questions

1. If α + β = 90° and α:β = 2:1, then the ratio of cosα to cosβ is

2. The value of $cos^{2}20° + cos^{2}270°$ is

3. What is the value of cosecA/√(cosec2A – 1)?

4. If 5 secθ – 3 tanθ = 5, then what is the value of 5 tanθ – 3 secθ?

5. The ratio of the length of a rod and its shadow is 1 :$\sqrt{2}$. The angle of elevation of the sun is :

6. If $sec (3x - 20^{0})$ = $cosec (3y + 20^{0})$, then what is the value of tan (x + y)?

7. If $\alpha$ is an cute angle and $2 sin\alpha + 15 cos^{2}\alpha$ = 7 then the value of $cot\alpha$ is

8. If a person walks at 15 km/hr instead of 9 km/hr, he would have walked 3 km more in the same time. What is the actual distance (in kms) travelled by him?

9. If cosA = x, then x is

10. The angle of depression from 100-meter tower to the top and bottom of a house is 30° and 60° respectively. What is height of house?