Question

The relation between the number of bracelets (n) and their price (p), is given in the table. Which of the following gives the equation representing this relation?

• A. p = 20n
• B. p = 5n + 5
• C. p = 15n + 5
• D. n = 15p + 5

Answer 1

The correct option is C p = 15n + 5

From the given table, we observe that

when n = 1, we get p = 20

P = 15n + 5
= 15 $\times$ 1 + 5
= 15 + 5 = 20

Similarly, when n = 2, we get p = 35

p = 15 $\times$ 2 +5
= 30 + 5
= 35

when n = 3, we get p = 50
p = 15 $\times$ 3 + 5
= 45 + 5
= 50

Hence, p is the sum of 15 times n and 5.

Hence, the required equation representing the relation is p = 15n + 5