Benny\textquotesingle s height $$=1.14+0.23=1.37\text{m}$$  Total heights of the $$2$$ children $$=1.14+1.37=2.51=2.5\text{m}$$ (rounded to $$1$$ d.p.) 
Sarah is $$1.14\text{m}$$ tall. Benny is $$0.23\text{m}$$ taller than Sarah. What is the total height of the $$2$$ children? Round off your answer to $$1$$ decimal place. 

[a] $$1.4\text{m}$$ 
[b] $$2.1\text{m}$$ 
[c] $$2.5\text{m}$$ 
[d] $$2.6\text{m}$$ 