51
Q:

# If a + b + c = 13, $a2+b2+c2=69$ then find the ab + bc + ca :

 A) 10 B) 30 C) 50 D) 70

Explanation:

$a+b+c2=a2+b2+c2+2ab+bc+ca$

$2ab+bc+ca=a+b+c2-a2+b2+c2=169-69=100=ab+bc+ca=50$

Subject: Simplification
Q:

1.123 + 11.23 + 112.3 = ?

 A) 123.453 B) 124.653 C) 125.253 D) 123.953

Explanation:

Filed Under: Simplification
Exam Prep: Bank Exams

0 3783
Q:

Find the factors of ?

 A) x - 11x - 12 B) (x + 12)(x - 11) C) (x + 11)(x + 12) D) (x - 12)(x + 11)

Explanation:

Filed Under: Simplification
Exam Prep: Bank Exams

2 4537
Q:

What is the simplified value of  ?

 A) 9 B) 10 C) 18 D) 20

Explanation:

Filed Under: Simplification
Exam Prep: Bank Exams

0 5417
Q:

 A) 110 B) 220 C) 330 D) 440

Explanation:

Filed Under: Simplification
Exam Prep: Bank Exams

2 340
Q:

What is the value of ?

 A) 2 B) 3 C) 4 D) 5

Explanation:

Filed Under: Simplification
Exam Prep: Bank Exams

1 7060
Q:

The two equations are 4x + 4ky-6=0 and x+6y-12=0. Find the value of k for the pair of two linear equations represents the parallel lines.

 A) 2 B)  6 C) 8 D) 10

Explanation:

Filed Under: Simplification
Exam Prep: Bank Exams

1 354
Q:

Find the y-intercept of the line joining two points (1, 3) and (3, 5).

 A) -2 B) 0 C) 2 D) 4

Explanation:

Filed Under: Simplification
Exam Prep: Bank Exams

0 1738
Q:

Calculate the total numbers of prime factors in the expression .

 A) 35 B)  36 C) 37 D) 38