Question

If x² = 169 and y³ = 1331 then find 5x – 3y.

1. 31
2. 32
3. 35
4. 37

Answer 1

Correct Answer - Option 2 : 32

Given:

x² = 169     

y³ = 1331     

Calculations:

Solving,

x = 13

y = 11

5x – 3y = 5 × 13 – 3 × 11

⇒ 65 – 33

⇒ 32

∴ 5x – 3y = 32