Multiple Choice Questions

The average of four consecutive even numbers P Q R and S respectively in increasing order is 51 What...........

Qunatitative Aptitude (RBI Ast) Average

The average of four consecutive even numbers P, Q, R and S respectively (in increasing order) is 51. What is the product of P and R?

2592

2496

2600

2808

x + x + 2 + x + 4 + x + 6 = 4 × 51
= 4x + 12 = 204
= 4x = 204 – 12 = 192
x = 192/4 = 48 = P
∴ R = 48 + 4 = 52
∴ P × R = 48 × 52 = 2496

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