# Quantitative Aptitude for SSC CHSL 2018

**1. The average of eleven numbers is 60, out of which the average of first seven numbers is 63 and that of last six numbers is 58. Find the average of the 6th and 7th number.**

1) 64

2) 65.5

3) 64.5

4) 66

5) None of these

**2. A container contains 90 litres of milk. From this container 9 litres of milk was taken out and replaced with water. This process was repeated twice more. What is the percentage of milk in the present solution?**

1) 72.9%

2) 73.9%

3) 73.5%

4) 74.5%

5) None of these

**3. The sum of digits of a number is 1/7 of the difference between the number itself and the one obtained by interchanging its digits. Find the difference of digits of that number.**

1) 6

2) 4

3) 7

4) Data sufficient

5) None of these

**4. The difference between the simple interest calculated yearly and the compound interest calculated half-yearly at same rate of interest for one year on a sum of Rs. 1200 is Rs. 32. What is the rate of interest?**

1) 10%

2) 8%

3) 15%

4) 12%

5) 13%

**5. Two trains start at the same time from two stations A and B and proceed towards each other at speeds of 30 kmph and 25 kmph respectively. When they meet, the difference between the distances travelled by these two trains is 40 km. What is the distance between A and B?**

1) 360 km

2) 400 km

3) 420 km

4) 440 km

5) 480 km

**6. A tank is normally filled in 18 hours but due to a leak in the bottom, it takes 3 hours more to fill completely. If the tank is filled completely, in what time will the leak empty it completely?**

1) 84 hours

2) 54 hours

3) 96 hours

4) 112 hours

5) 126 hours

**Directions (Q. 7-11): Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read the questions and both the statements and give answer**
1) if the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not

sufficient to answer the question.

sufficient to answer the question.

2) if the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not

sufficient to answer the question.

sufficient to answer the question.

3) if the data either in statement I alone or in statement II alone are sufficient to answer the question.

4) if the data in both the statements I and II together are not sufficient to answer the question.

5) if the data in both the statements I and II together are necessary to answer the question.

7. In how many years can a simple interest of Rs. 7500 be obtained on an amount of Rs. 37500?

I. The rate of interest is 6% per annum.

II. The difference between simple interest and CI is Rs. 505.50.

8. What is the value of a two-digit number?

I. The product of the digits is 63 and the difference of the digits is 2.

II. The digit at unit’s place is greater than the other digit.

9. What is the area of a circle?

I. The circumference of the circle is 154 cm.

II. The diameter of the circle is equal to the side of the square having area 441 cm2.

10. How many women can complete a work in 20 days?

I. The work done by a woman in one day is 60% of the work done by a man in one day.

II. The work done by a woman in one day is 150% of the work done by a child in one day.

11. What is the speed of a train?

I. The train crosses another train coming from opposite direction at the speed of 72 kmph in 20 seconds.

II. The train crosses another train running in the same direction at the speed of 56 kmph in 1 min 15 seconds.

**Answers:**

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