SSC GD Constable 2021 · Question 46 of 377

8 pens and 14 pencils cost as much as 12 pens and 5 pencils. The ratio of the cost of one pen to the cost of one pencil is:

ratio-proportion

A9 : 5
B9 : 4Correct
C7 : 5
D8 : 5

Answer: B. 9 : 4

Explanation

Given:Cost of 8 pens and 14 pencils = Cost of 12 pens and 5 pencils Calculation:Let Cost of 1 pen be x and Cost of 1 pencil be y, According to question⇒ 8x + 14y = 12x + 5y ⇒ 4x = 9y ⇒ x/y = 9/4 ∴ Ratio of cost of one pen to the cost of one pencil is 9 : 4.

Source: SSC GD Constable 2021 Prev. Year Paper (2021-11-30 Shift 1) English — Prepp (with solutions) · reliable-secondary

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