Question

16. Anand bought a total of 30 white and brown pens for
a total of 532. The cost of each white pen is 70 paise
more than the cost of each brown pen. Which of the
following represents a possible value of the cost of
each brown pen (in paise)?
(A) 40
(B) 35
(C) 45 (D) 60​

Answer 1

Explanation:

Sol. Let the cost of each brown pen be b paise, cost of each white pen = (b + 70) paise. Suppose Anand bought B brown pens. He must have bought (30 - B) white pens.

Total cost bB+(30-B) (b+70)

30b-70B2100 = 3200

B = 36-110/7

Among the given choices, B has a feasible value only when b = 60.

Hence, the correct option is (D).

Answer 2

the brown pen cost is 45 I think that's is right