Question

If the cost of 25 packets of 12 pencils each is Rs 750, then the cost of 30 packets of 8 pencils each is

Answer 1

(a) Rs. 600
It is given that the cost of 25 packets of 12 pencils each is Rs 750; therefore, we have:

Cost of (25$\times$12) pencils = 300 pencils = Rs. 750

Let the cost of (30$\times$8) or 240 pencils be Rs. x.

$\because$ 750 : 300 : : x : 240

$\therefore$ Cost of (30$\times$8) = 240 pencils = $\frac{750}{300}\times 240=\mathrm{Rs}.600$