Question
The question below is based on the given series I. The
series I satisfy a certain pattern, follow the same pattern in series II and answer the questions given below. I: 6220, 6195, 6244, 6163, 6284, 6115 II: 1890 ….. 1954. If 1954 is the nth term, what value should come in the place of (n + 1)th term.Solution
Explanation Answer: C Series I pattern: 6220 – 52 = 6195 6195 + 72 = 6244 6244 – 92 = 6163 6163 + 112 = 6284 6284 – 132 = 6115 Series II pattern: 1890 is the first term 1890 – 52 = 1865 1865 + 72 = 1914 1914 – 92 = 1833 1833 + 112 = 1954 (5th term) 1954 – 132 = 1 785 (6th term)
The base of a right pyramid is a square of side 10 cm. If its height is 10 cm. then the area (in cm2) of its lateral surface is:
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