STS Preparation Book PDF 2026 (Free Download)

What is in the STS book

Each model paper carries the same number of MCQs per subject as the real STS paper, so sitting it is a rehearsal of the real thing, not a random worksheet.

Sample MCQs from the STS book

The first 10 questions of model paper 1.

1. English

   1. Choose the sentence that is grammatically correct:

   • A. He weighed himself maunds.
   • B. He weighed two maunds.
   • C. He weighed themselves two.
   • D. He weighed itself two maunds.
   Show answer

   Answer: B, He weighed two maunds.. See the explanation

2. Mathematics

   2. A wooden box of dimensions 8m x 7m x 6m is to carry rectangular boxes of dimensions 8cm x 7cm x 6cm. The maximum number of boxes that can be carried in 1 wooden box is?

   • A. 1200000
   • B. 1000000
   • C. 9800000
   • D. 7500000
   Show answer

   Answer: B, 1000000. See the explanation

3. Analytical and Logical Reasoning

   3. Read the following and choose the correct answer : " P, Q and R are one-digit, non-negative numbers. P is the smallest even number. Q is the largest odd number. R is 5."

   • A. P+Q+R= 16
   • B. P+Q +R =12
   • C. (Q+R) ×P= 30
   • D. (Q+R) ×P= 8
   Show answer

   Answer: A, P+Q+R= 16. See the explanation

4. General Knowledge

   4. Uzbekistan, Turkemanistan & Gergia became members of UNO in which year ?

   • A. 1990
   • B. 1991
   • C. 1992
   • D. 1993
   Show answer

   Answer: C, 1992. See the explanation

5. English

   5. Identify the mistake that needs to be corrected.Police in their investigation used coercive measure to get favourable statements from the accused.

   • A. Their
   • B. Used
   • C. Measure
   • D. From the accused
   Show answer

   Answer: C, Measure. See the explanation

6. Mathematics

   6. Using Binomial Theorem approximates (2.02)4 upto two decimal places:

   • A. 16.64
   • B. 16.44
   • C. 16.40
   • D. 16.60
   Show answer

   Answer: A, 16.64. See the explanation

7. Analytical and Logical Reasoning

   7. In the following question, a statement is given followed by four inferences. You have to decide which of the given Inferences can definitely be drawn from the given statement. Indicate your answer. Statement: Most dresses in that shop are expensive. Inferences: I. Some dresses in that shop are expensive. II. There are cheap dresses also in that shop. III. Handloom dresses in that shop are cheap. IV. There are no cheap dresses available in that shop.

   • A. Only I follows
   • B. Only II follows
   • C. Only III follows
   • D. Only IV follows
   • E. None follows
   Show answer

   Answer: B, Only II follows. See the explanation

8. General Knowledge

   8. ASEAN summit 2018 was held in?

   • A. Singapore
   • B. Brunei
   • C. Bangkok
   • D. None of these
   Show answer

   Answer: A, Singapore. See the explanation

9. English

   9. Indirect form of the sentence is: He said to me, "What a stupid fellow you are!"

   • A. He exclaimed that I was very stupid fellow
   • B. He told me that you were a stupid fellow
   • C. He exclaimed that what a stupid fellow I was
   • D. He did tell me that I had been a stupid fellow
   Show answer

   Answer: C, He exclaimed that what a stupid fellow I was. See the explanation

10. Mathematics

    10. Two pipes can fill a tank in 18 minutes and 15 minutes. An outlet pipe can empty the tank in 45 minutes. If all the pipes are opened when the tank is empty, then how many minutes will it take to fill the tank?

    • A. 12
    • B. 13
    • C. 11
    • D. 10
    Show answer

    Answer: D, 10. See the explanation

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