User Forum

Few teams of boys and girls are made separately. Each team of girls has 15 members. All teams of boys have same numbers of members that is more than 5.
The total number of team members is 80.
Which of the following numbers cannot be the number of members in a team of boys?

A7
B10
C15
D25

In a triangle ABC, ∠A = 90° and D is the mid-point of AC. The value of BC2 - BD2 is equal to ______.

(A) AD2

(B) 2AD2

(C) 3AD2

(D) 4AD2

In ΔABC, AD ⊥ BC, ∠B = ∠C and AB = AC. State by which property ΔADB ΔADC ?

(A) SAS property

(B) SSS property

(C) RHS property

(D) ASA property

In ΔABC, ∠BAC = 90° and AD ⊥ BC. If ∠BAD = 40°, then ∠ACD is ______.

(A) 40°

(B) 50°

(C) 140°

(D) 60°

Which of the following statements is correct ?

A : Two triangles are said to be congruent if two sides and an angle of one triangle are respectively equal to the two sides and an angle of the other.

R : Two triangles are congruent if two sides and the included angle of the one must be equal to the corresponding two sides and included angle of the other.

(A) A is false and R is the true

(B) A is true and R is the correct explanation of A

(C) A is true and R is false

(D) Both A and R are false

ABCD is a square. P is a point in its interior such that Δ PAB is equilateral. Then measure of ∠PCB is ______.

(A) 45°

(B) 30°

(C) 60°

(D) 75°

In ΔABC, AB = AC and AD is perpendicular bisector of BC. The property by which ΔADB is not congruent to ΔADC is ______.

(A) SAS property

(B) SSS property

(C) RHS property

(D) AAA property

Match the following.

(A) 1C, 2D, 3A, 4B

(B) 1A, 2B, 3C, 4D

(C) 1B, 2C, 3D, 4A

(D) 1D, 2A, 3B, 4C

Find the missing character in the question given below.


A 18
B 16
C 12
D 10

(A) 56

(B) 70

(C) 78