Question

The cost of 18 pens and 12 scissors is Rs. 756. What is is the cost of 6 pens and 4 scissors?

• A. Rs. 252
• B. Rs. 189
• C. Rs. 378
• D. Cannnot be determined

Answer 1

Answer:

A. Rs. 252

Let the C.P of 1 pen be Rs. x and that of 1 scissor be Rs. y .

$18x +12y = 756$

Dividing both sides by 3.

$\frac{18x}{3}+\frac{12y}{3}=\frac{756}{3}$

$6x+4y=252$

Cost of 6 pen and 4 scissors is 252 Rs.