Question

1 + 4 = 5\
2 + 5 = 12\
3 + 6 = 21\
8 + 11 = ?

Explanation:

Step1: Identify the pattern

Looking at the given equations:

• For \(1 + 4\), the result is \(5\). Notice that \(1\times(4 + 1)=1\times5 = 5\)
• For \(2+5\), the result is \(12\). Notice that \(2\times(5 + 1)=2\times6=12\)
• For \(3 + 6\), the result is \(21\). Notice that \(3\times(6 + 1)=3\times7 = 21\)

So the pattern is \(a + b=a\times(b + 1)\)

Step2: Apply the pattern to \(8+11\)

Using the pattern \(a\times(b + 1)\) where \(a = 8\) and \(b=11\)
We calculate \(8\times(11 + 1)=8\times12\)
\(8\times12 = 96\)

Answer:

\(96\)