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Class VII Mathematics Talent Test: Rational Numbers
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Class VII Mathematics Talent Test: Rational Numbers
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20 Questions

1. What is the quotient when a non-zero rational number is divided by its additive inverse.
2. Divide the difference of 3/7 and 2/5 by the product of 4/5 and 25/2
3. The sum of 7/-3 and 5/-6 and -5/3 and a number. Find the number.
4. From a rope of 40m 50cm , pieces of equal size are cut. If each piece is 2 1/4 m long, find the number of pieces cut off?
5. Find the value of -9/5 + -8/5 / 5/2 x -5/4
6. The sum of 7/-3 and 5/-6 and -5/3 and a number. Find the number.
7. Find the value: [-2/7 - 5/7] x [(8/3) / (4/9)]
8. If p/q and r/s are rational numbers ,then p/q is multiplicative inverse of r/s if
9. If p/q and r/s are rational numbers ,then p/q is multiplicative inverse of r/s if
10. For what value of ‘a’ the number (-11)/a is not a rational number.
11. Divide the sum of -1/3 and 5/6 by the sum of -1/4 and 3/8
12. ______ and ______ are reciprocals of itself.
13. For what value of ‘a’ the number (-11)/a is not a rational number.
14. The product of two rational numbers is (-7)/8 . If one of the numbers is 1/(-6). .Find the other.
15. By what number should we multiply -5/4 to get 7/2
16. From a rope of 40m 50cm , pieces of equal size are cut. If each piece is 2 1/4 m long, find the number of pieces cut off?
17. Subtract - 3/5 from its reciprocal.
18. The sum of three rational numbers is -1/5. If two of the numbers are 3/10 and -2/5, find the third number.
19. What is the quotient when a non-zero rational number is divided by its additive inverse.
20. The sum of three rational numbers is -1/5. If two of the numbers are 3/10 and -2/5, find the third number.