Challenger App

No.1 PSC Learning App

1M+ Downloads

If the sum of the squares of the digits of a two-digit number is 13, then what would be the sum of all the possible combinations of the digits?

A44

B55

C54

D45

Answer:

B. 55

Read Explanation:

Let the number be 10x + y form

⇒ x2 + y2 = 13

⇒ x = 2 or 3 and y = 3 or 2

Sum of such numbers = 23 + 32 = 55


Related Questions:

If 1138=a+b2\sqrt{11-3\sqrt{8}}=a+b\sqrt{2}, then what is the value of (2a+3b)?

If p and q are the solutions of the equation aX2 + bx+c=0, where a, b and c are positive numbers, then

A student wrote x5x x3=x15 As a mathematics teacher, you:

If a + b + c = 6, a2+b2+c2=30a^2 + b^2 + c^2 = 30 and a3+b3+c3=165,a^3 + b^3 + c^3 = 165, then the value of 4abc is:

If x + y + z = 10, x3+y3+z3=75x^3 + y^3 + z^3 = 75 and xyz = 15, then find the value of x2+y2+z2xyyzzxx^2 + y^2 + z^2-xy-yz-zx