The price of 24 apples is equal to that of 28 oranges. The price of 45 apples and 60 oranges together is Rs.1350. The total price of 30 apples and 40 oranges is	Options.
A) 850 B) 900 C) 750 D) 950 E) 800
Let the price of one apple = a and price of one orange = b   Price of 24 apples is equal to that of 28 oranges   24a = 28b   =&gt; 6a = 7b   ⇒b=6a/7 -----(Equation 1)   price of 45 apples and 60 oranges together is Rs.1350   =&gt; 45a + 60b = 1350   =&gt; 3a + 4b = 90   ⇒3a+4(6a)/7=90 (∵ Substituted the value of b from equation 1)   ⇒a+4(2a)/7=30   =&gt; 7a + 8a = 30 × 7 = 210   =&gt; 15a = 210   ⇒a=21015=423=14   b=6a7=(6×14)/7=6×2=12   Total price of 30 apples and 40 oranges   = 30a + 45b = (30 × 14) + (40 × 12) = 420 + 480= 
<gadget id="calculator">420 + 480</gadget>
<output>900</output>
900   Answer is 900.
<result>B</result>
The price of 24 apples is equal to that of 28 oranges. The price of 45 apples and 60 oranges together is Rs.1350. The total price of 30 apples and 40 oranges is