Maths Problems(7th Grade > Mathematics ) Questions and Answers

Question 1. The lengths of sides of triangle are x cm,(x + 1) cm and (x + 2) cm, the value of x when triangle is right angled is
  1.    5cm
  2.    4cm
  3.    3cm
  4.    6cm
Explanation:-
Answer: Option C. -> 3cm
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 2. Solve the simultaneous equations 13x - 6y = 20, 7x + 4y = 18
  1.    x = 2, y = 1
  2.    x = 4, y = 8
  3.    x = 6, y = 1
  4.    x = 2, y = 4
Explanation:-
Answer: Option A. -> x = 2, y = 1
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3. The Graphs of y = ax² passes through
  1.    Origin
  2.    x-axis
  3.    y-axis
  4.    None of above
Explanation:-
Answer: Option A. -> Origin
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4. One third of sum of two angles is 60° and one fourth of their difference is 28°. The angles are
  1.    30° and 44°
  2.    34° and 90°
  3.    146° and 34°
  4.    130° and 60°
Explanation:-
Answer: Option C. -> 146° and 34°
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 5. A triangle whose sides are 15cm, 36cm, and 39cm is
  1.    Right angled
  2.    Equilateral
  3.    isosceles
  4.    none of above
Explanation:-
Answer: Option A. -> Right angled
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 6. The median of 7, 6, 4, 8, 2, 5, 11 is
  1.    6
  2.    12
  3.    11
  4.    4
Explanation:-
Answer: Option A. -> 6
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 7. The measure of chance is known as
  1.    Geometry
  2.    statistics
  3.    probability
  4.    none of above
Explanation:-
Answer: Option C. -> probability
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 8. Number which occurs most frequently in a set of numbers is
  1.    mean
  2.    median
  3.    mode
  4.    None of above
Explanation:-
Answer: Option C. -> mode
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 9. In a triangle with sides a,b and c, if a² = b² + c², then angle facing a is
  1.    acute angle
  2.    right angle
  3.    obtuse angle
  4.    none of above
Explanation:-
Answer: Option B. -> right angle
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 10. The mode of 12, 17, 16, 14, 13, 16, 11, 14 is
  1.    13
  2.    11
  3.    14
  4.    14 and 16
Explanation:-
Answer: Option D. -> 14 and 16
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
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