Question

2+3=8
3+7=27
4+5=32
5+8=60
6+7=72
7+8=???

Answer 1

Answer:

98 is the answer.

Step-by-step explanation:

2 + 3 = 8

Now,

3 + 7 = 27

Or

3 ☓ (2 + 7) = 27

So,

6 + 7 = 72

7 + 8 = 7 ☓ (8 +6)

7 + 8 = 98

➡️ Rule :

Multiply first term by sum of 2nd term and first term of previous eqn.

Answer 2

7 + 8 = 98 if 2+3=8 , 3+7=27, 4+5=32, 5+8=60, 6+7=72, 7+8=???

logic is a + b = c  => c = a(a + b- 1)

Given:

2+3=8

3+7=27

4+5=32

5+8=60

6+7=72

To Find:

7+8=

Solution:

Understanding the logic

2 + 3 = 2

2(2 + 3 - 1) = 2(4) = 8

3 + 7 = 27

3(3 + 7 - 1) = 3(9) = 27

4 + 5 = 32

4(4 +5 - 1) = 4(8) = 32

5 + 8 = 60

5(5 + 8 - 1) = 5(12) = 60

6 + 7 = 72

6(6 + 7 - 1) = 6(12) = 72

Logic is

a +  b = c

=> a(a + b - 1)  = c

Applying the same logic

7 + 8 = ?

7(7 + 8 - 1) = 7(14) = 98

Hence, 7 + 8 = 98

7 + 8 = 98 if 2+3=8 , 3+7=27, 4+5=32, 5+8=60, 6+7=72, 7+8=???

logic is a + b = c  => c = a(a + b- 1)