Add five $$20$$\textquotesingle s to $$10+11+12+13+14$$ to get $$30+31+32+33+34$$. The answer is $$\text{D}$$. 
$$10+11+12+13+14=\left(30+31+32+33+34\right)-$$． 
Options:
[a] $$5$$ 
[b] $$20$$ 
[c] $$3\times 20$$ 
[d] $$5\times 20$$ 