Directions (Q. 1-5): In each of the following number series, a wrong number is given. Find out that number.

1. 4, 5, 18, 80, 388, 2065, 12606

1) 5 2) 18 3) 80 4) 388 5) 2065

2. 22, 51, 88, 133, 186, 248, 316

1) 51 2) 88 3) 133 4) 186 5) 248

3. 7, 9, 21, 57, 137, 284, 539

1) 9 2) 21 3) 57 4) 137 5) 284

4. 3, 17, 83, 371, 1907, 11507, 80627

1) 17 2) 83 3) 371 4) 1907 5) 11507

5. 8, 9, 25, 105, 362, 987, 2283

1) 9 2) 25 3) 105 4) 362 5) 987

Directions (Q. 6-10): Each question below is followed by two statements I and II. You are to determine whether the data given in the statement is sufficient to answer the question. You should use the data and your knowledge of Mathematics to choose the possible answers.

Give answer

1) if the question can be answered by using statement I alone but can not be answered by statement II alone.

2) if the question can be answered by using statement II alone but can not be answered by statement I alone.

3) if both statements I and II together are required to answer the question.

4) if the answer can be derived by using any of the two statements alone.

5) if both the statements together are not sufficient to answer the question.

6. How many days will Ram take to make 150 toys?

I. Shyam takes 10 days to make 100 toys.

II. Ram and Shyam together make 150 toys in 6 days.

7. What is the rate of simple interest?

I. Simple interest is Rs 200.

II. Duration is 2 years?

8. What is the area of a circle?

I. Radius of circle is 35 cm.

II. Circumference of circle is 220 cm.

9. What is the number of boys and number of girls in a class?

I. The ratio of the number of boys to the number of girls is 5 : 4.

II. The number of boys is 25% more than the number of girls.

10. What is the present age A and B?

I. Ratio of their present ages is 3 : 1.

II. Ratio of their ages 10 years ago was 5 : 1.

Answers :-

9. 5; Both statements together are not sufficient. Total number

of students is required to find the answer.

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