Answer:
The puzzle is first add the current two numbers and then add their sum to result obtained in previous step.
Step-by-step explanation:
1 + 4 = 5
2 + 5 = 12
12 is obtained by adding 2 + 5 = 7 and adding the result obtained in previous result which is 5 to 7
⇒ 7 + 5 = 12
Now, 3 + 6 = 21
21 is obtained by first adding 3 + 6 = 9 and the previous result obtained is 12
So adding 12 to 9 ⇒ 12 + 9 = 21
Hence, The puzzle is first add the current two numbers and then add their sum to result obtained in previous step.
Answer:
20in
Step-by-step explanation: If the smaller frame is 3 by 5in long then the larger frame will by 12 by 20in becuase 3*4=12 so 5*4=20
3/4=12/40
Answer:
A. 15,19,26,51,1821
Step-by-step explanation:
Answer:
I would say <u><em>B. 6 inches, 8 inches, 10 inches. </em></u>
Step-by-step explanation:
They are all 2 times difference.
3 · 2 = 6
4 · 2 = 8
5 · 2 = 10
