Mathematics-Rational Numbers (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 1 - 5 of 13
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Question number: 1
» Mathematics » Rational Numbers
Question
A sum of Rs. 1550 was lent partly at 5 % and partly at 8 % simple interest. The total interest received after 3 year was Rs. 300. The ratio of money lent at 5 % to 8 % is
Choices
Choice (4) | Response | |
---|---|---|
a. | 11: 12 | |
b. | 11: 13 | |
c. | 16: 15 | |
d. | 12: 21 |
Question number: 2
» Mathematics » Rational Numbers
Question
If x + 5: 3x + 4 is the duplicate ratio of 5: 8, then the value of x is
Choices
Choice (4) | Response | |
---|---|---|
a. | 22 | |
b. | 18 | |
c. | 20 | |
d. | 16 |
Question number: 3
» Mathematics » Rational Numbers
Question
If x and y denote respectively, the area and the sum of the length of diagonals of a rectangle with length 1 unit and breadth unit, then which one of the following is correct?
Choices
Choice (4) | Response | |
---|---|---|
a. | x is irrational and y is rational | |
b. | x and y are both irrational | |
c. | x is rational and y is irrational | |
d. | x and y are rational |
Question number: 4
» Mathematics » Rational Numbers
Question
Ravi can build a wall in the same time in which Mahesh and Suresh together do it. If Ravi and Mahesh together could do it in 10 days and Suresh alone in 15 days. In what time Mahesh alone do it?
Choices
Choice (4) | Response | |
---|---|---|
a. | 30 days | |
b. | 50 days | |
c. | 40 days | |
d. | 60 days |
Question number: 5
» Mathematics » Rational Numbers
Question
The average score of boys in an examination of a school is 71 and that of the girls is 73. The average score of the school in the examination is 71.8. Then, the ratio of the number of boys to the number of girls appeared in the examination is
Choices
Choice (4) | Response | |
---|---|---|
a. | 1.5 | |
b. | 1.33 | |
c. | 0.67 | |
d. | 0.75 |