Question

Find the average of five numbers a, b, c, d and e such that b = 20, and a is 20% more than that of ‘b’. ‘c’ is 10 less than ‘a’. The ratio of ‘c’ to ‘d’ is 1:3, respectively, and ‘e’ is 5 less than ‘b’.

Q: Find the average of five numbers a, b, c, d and e such that b = 20, and a is 20% more than that of &

According to the question, a = 1.20 × 20 = 24 c = 24 – 10 = 14 d = 14 × 3 = 42 e = 20 – 5 = 15 Required average = (24 + 14 + 42 + 15 + 20)/5 = 115/5 = 23

A 23

B 22

C 25

D 26

E None of these

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SIDBI Grade A (Assistant Manager)

Question

Find the average of five numbers a, b, c, d and e such that b = 20, and a is 20% more than that of ‘b’. ‘c’ is 10 less than ‘a’. The ratio of ‘c’ to ‘d’ is 1:3, respectively, and ‘e’ is 5 less than ‘b’.

Solution

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