# SAT Math Quiz – Number System

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SAT Math Questions – Number System – To help you in better SAT Math preparation and to check in your present level, we have come up with SAT Math quiz for Number System topic. This quiz will surely help you in checking your SAT preparation for Number System topic.

Improving your SAT Math is one of the sure ways to improve your SAT score. Our quizzes are designed to develop your SAT Math concepts and familiarity with exam level questions. Solving these questions will help you learn or recall required formulae and increase your problem solving speed.

## SAT Math Questions – Number System

1. If the digits of a two-digit number are interchanged, the number so obtained is greater than the original number by 18. If the sum of the two digits of the number is 14. What is the original number ?

Question 1 of 10

2. The number obtained by interchanging the digits of a two-digit number is less than the original number by 36. The sum of the digits of the number is 8. What is the original number ?

Question 2 of 10

3. The number obtained by interchanging the digits of a two digit number is less than the original number by 18.If sum of the digits is 6, what was the original two digit number?

Question 3 of 10

4. If the positions of the digits of a two-digit are interchanged, the number obtained is smaller than the original number by 27. If the digits of the number are in the ratio 1: 2, what is the original number?

Question 4 of 10

5. Raman’s monthly expenses is six time Ratan’s monthly expenses. Ratan’s monthly expenses is thirty percent more than Govind’s monthly expenses. Govind’s monthly expenses is Rs. 64000 /- . What is Raman’s Annual Expenses?

Question 5 of 10

6. In an objective examination of 90 questions, 5 marks are allotted for every correct answer and 2 marks are deducted for every wrong answer. After attempting all the 90 questions, a student got a total of 387 marks. The number of questions attempted wrong were:

Question 6 of 10

7. A class has an equal number of boys and girls. Ten girls left the class to practice for music, leaving thrice as many boys as girls  in the  classroom. What  was  the total number of girls and boys present initially in the classroom?

Question 7 of 10

8. A house owner wants  to get his house painted. He is told that this would require 45 kg of paint. Allowing for 6.25% wastage and assuming that the paint  is  available in 4 kg tins, the number of tins required for painting the house?

Question 8 of 10

9. The average of three numbers is 154. The first number is twice the second and  the second number is twice the third. The first numbers is

Question 9 of 10

10. The sum of the two digits of a two-digit number is 12 and the difference between the two-digits of the two-digit number is 6. What is the two-digit number?

Question 10 of 10