1) The total number of trees planted by NGOs A and B together in Bihar was approximate what percentage of the total number of trees planted by NGOs B and C together in Punjab? A) 85 B) 90 C) 105 D) 110 E) 95 Answer: Option EExplanation:Required % = $\left\{\left( \frac{100 + 60}{80+88}\right)\times100\right\}$% = $\frac{160}{168}\times100$% = $\frac{2000}{21}$ = 95%