Here is a sample test for NCERT textbooks:

Subject: Mathematics

1. The sum of two consecutive even numbers is 38. Find the numbers.
a) 18, 20
b) 19, 21
c) 20, 22
d) 21, 23

2. If the length of a rectangle is increased by 20% and the width is decreased by 10%, find the percentage change in its area.
a) 6%
b) 8%
c) 10%
d) 12%

3. Solve the equation: 3x + 5 = 17
a) x = 4
b) x = 5
c) x = 6
d) x = 7

4. Find the value of 'p' in the equation: 2p - 4 = 10
a) 5
b) 7
c) 8
d) 9

Subject: Science

1. What is the unit of electric current?
a) Ampere
b) Volt
c) Ohm
d) Watt

2. Which gas is responsible for the greenhouse effect?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Hydrogen

3. What is the function of the ribosomes in a cell?
a) Energy production
b) Protein synthesis
c) DNA replication
d) Waste disposal

4. What is the chemical formula for water?
a) H2O
b) CO2
c) NaCl
d) CH4

Subject: English

1. Identify the correct form of the verb in the sentence: She _______ to the supermarket every day.
a) go
b) goes
c) went
d) gone

2. Choose the correct preposition to complete the sentence: The book is _______ the table.
a) on
b) at
c) in
d) under

3. Select the appropriate synonym for the word 'happy':
a) Sad
b) Angry
c) Joyful
d) Tired

4. Fill in the blank with the correct article: _______ apple a day keeps the doctor away.
a) An
b) A
c) The
d) None of the above

Note: The answers to the questions are as follows:
Mathematics: 1. c) 20, 22, 2. a) 6%, 3. b) x = 5, 4. a) 5
Science: 1. a) Ampere, 2. b) Carbon dioxide, 3. b) Protein synthesis, 4. a) H2O
English: 1. b) goes, 2. a) on, 3. c) Joyful, 4. b) A