2a-20=20 then find the value of a? March 29, 2021 / By Preparation Point / MODEL PAPER 89: FIELD ASSISTANT in the Agriculture Department (BPS-16) – 2018 Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedInA) 20 ✓ B) 11 C) 12 D) 13 Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn