The total production of type B cars in 2015 and type C cars in 2013 is what percent more that the total production of type E cars in 2013 and 2014 ? (Correct to one decimal place)

Solution

The total production of type B cars in 2015 and type C cars in 2013 is = $$58+52$$= $$110$$

the total production of type E cars in 2013 and 2014 = $$43+47$$ = $$90$$

hence use this formula Increase in percentage (%) = $$\frac{110-90}{90}$$×100

= hence use this formula Increase in percentage (%) = $$\frac{20}{90}$$×100

= 22.22%

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