Question

Find the missing number.

5, 11, 96
9, 13, 88
8, 17, ?

a) 225
b) 165
c) 185
d) 250​

Answer 1

Answer:

a) 225

Step-by-step explanation:

In the first row numbers are 5, 11 and 96.

Assume 5 as A, 11 as B and 96 as C.

Used formula:

(B² - A²) = C

On applying this rule on first row,

→ (11)² - (5)² = 96

→ 121 - 25 = 96

→ 96 = 96

In second row numbers are 9, 13 and 88. Take 9 as A, 13 as B and 88 as C.

→ (13)² - (9)² = 88

→ 169 - 81 = 88

→ 88 = 88

In third row numbers are 8 and 17. Assume that the this number is x. Now, take 8 as A, 17 as B and x as C.

→ (17)² - (8)² = x

→ 289 - 64 = x

→ 225 = x

Hence, the missing number is 225.

Answer 2

$<marquee>d is the correct answer....$

$\huge\boxed{\underline{\underline{\underline{\underline{\underline{225}}}}}}$