Question

what will come in the place of '?' in the following expression
12,20,46,?,178,344 ​

Answer 1

https://blog.goo.ne.jp/raselsports2002/e/e568b4ade61b9d97cb1c41b10cc83e9e

https://blog.goo.ne.jp/raselsports2002/e/d77d60c926a9f2266c73e753230b67d0

https://blog.goo.ne.jp/raselsports2002/e/b57deea5b9057b7c7c6ef278bc3b05b1

https://blog.goo.ne.jp/raselsports2002/e/f7dea76336379fc2bb5a23b5d4523363

https://blog.goo.ne.jp/raselsports2002/e/7938eed6ee1685bb4321499ef3926af8

https://blog.goo.ne.jp/raselsports2002/e/4136b865b09710fa30cb41fe29e19578

https://blog.goo.ne.jp/raselsports2002/e/6a66687387996bfc83544650675c2a08

https://blog.goo.ne.jp/raselsports2002/e/752e513718d79067a9d3e211e969a395

https://blog.goo.ne.jp/raselsports2002/e/24f19cbc8d84cda50449613600f9148a

https://blog.goo.ne.jp/raselsports2002/e/963d0fe18235ae7450569d0ed74125ab

https://blog.goo.ne.jp/raselsports2002/e/d110cc33fc7e6116f07e77ae736fedeb

https://blog.goo.ne.jp/raselsports2002/e/d0c68ce59f97693a4be8713361821e95

https://blog.goo.ne.jp/raselsports2002/e/11f068ebc9d5b1cda05675ae137f173f

https://blog.goo.ne.jp/raselsports2002/e/1282de16fab8b000209bb58c40fb79e7