Question
A series given below follows a certain pattern,
1800, 469, (?), 855, 980, 953 If (?) = B β 2, then find the nearest cube root of B.Solution
ATQ, look at the cube pattern: 1800 β 11Β³ = 1800 β 1331 = 469 469 + 9Β³ = 469 + 729 = 1198 1198 β 7Β³ = 1198 β 343 = 855 855 + 5Β³ = 855 + 125 = 980 980 β 3Β³ = 980 β 27 = 953 So, (?) = 1198 Given (?) = B β 2 B = 1198 + 2 = 1200 Now find nearest cube root of 1200: 10Β³ = 1000 11Β³ = 1331 1200 β 1000 = 200 1331 β 1200 = 131 Nearest cube root of 1200 is 11
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