**Mathematics Mcqs Online Test 4 Preparation Question Answer**

```
```An inlet pipe can fill a tank in 10 hrs and an outlet pipe empties the same full tank in 20 hrs. The time required to fill the tank when both pipes are opened?

10

20 .

30

25

### Correct!

### Wrong!

During a certain week a post office sold $280 worth of 14 cents stamps. How many of these stamps did they sell?

20

200

2000 .

20000

### Correct!

### Wrong!

The average of 5 numbers is 13. If the average of 4 of these numbers is 10 what is the fifth number?

.

10

25 .

35

40

### Correct!

### Wrong!

Jawads weekly salary is $70 less then Pashas which is $50 more than Marias. If Maria earns $280 per week how much does Jawad earn per week?

.

$160 .

$260

$280

. $300

### Correct!

### Wrong!

If 4 times x is equal to x increased by 2 then x=

.

3?2

2?3 .

3 .

2

### Correct!

### Wrong!

If part of tank filled in one hour = 1/10 then time required to fill the tank?

8 .

12

10

15

### Correct!

### Wrong!

If an inlet pipe fills a tank in 10 hrs and another inlet pipe fills the same tank in 5 hrs then time required to fill the tank when both pipes are opened?

10?3

3?10 .

1?3 .

3

### Correct!

### Wrong!

Nosheen painted 1/3 of her room with 5/2 cans of paint. How many more cans of paint will she need to finish painting her room?

5?2 .

3 .

5 .

10

### Correct!

### Wrong!

If an outlet pipe empties a full tank in 20 hrs then part of tank emptied in one hour?

3?20

2?5 .

1?10

1?20

### Correct!

### Wrong!

If an inlet pipe fills a tank in 10 hrs then part of tank filled in 1 hr?

1?5

1?10

1?15 .

1?8

### Correct!

### Wrong!

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