Question

Tea at Rs 126 per Kg and at Rs 135 per Kg are mixed with a third variety in the ratio 1 : 1 : 2. If the mixture is worth Rs 153 per Kg, the price of the third variety per Kg is:

• A. Rs 169.50
• B. Rs 175.50
• C. Rs 175
• D. Rs 185
• E. None of these

Answer 1

The correct option is B Rs 175.50

Let, the price of the third variety be Rs x per Kg
$\therefore 126\times 1+135\times 1+2\times x=153\times 4$
or, 261+2x=612 or, 2x=612-261=351
$\therefore x=\frac{351}{2}=175.50$