Direction : Solve the given series and answer the following questions. Series:…
2024
Direction : Solve the given series and answer the following questions.
Series: a + 15, a+ 16.2, a+18.6, _____, _______, M
Note: (i) x and y are prime number less than 10. (y>x)
(ii) xy = a
(iii) 2a = 10y.
Find the seventh term of the given series.
Answer: A. 75.2 — From the conditions, x = 5, y = 7, and a = 35. The added values in the series are 15, 16.2, 18.6, 22.2, 27.0, 33.0, and 40.2 because the differences increase…
- A.
75.2
- B.
68
- C.
83.6
- D.
77.2
- E.
92.8
Attempted by 16 students.
Show answer & explanation
Correct answer: A
From the conditions, x = 5, y = 7, and a = 35.
The added values in the series are 15, 16.2, 18.6, 22.2, 27.0, 33.0, and 40.2 because the differences increase by 1.2 each time.
The 7th term is a + 40.2 = 35 + 40.2 = 75.2.
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