Question
A man 3 m tall is 19 m away from a tower 22 m high.
Determine the angle of elevation of the top of the tower from the eye of the observer.Solution
In △ CDE, tan θ = CD/CE = (BD - BC)/CE = (22 - 3)/ 19 = 19/19 tan θ = 1 = tan 45 °  θ = 45 °
In the following question, select the wrong number from the given alternatives.
32, 16, 16, 24, 48, 126, 360
Select the wrong term from the given series?
RFD, OBY, LXT, ITO, FSK
Find the wrong term in the series given below.
38, 44, 32, 50, 24, 56, 20Â
Select the wrong term in the series.
10, 19, 23, 52, 61, 133, 149
Find the wrong number in the series given below.
3, 10, 89, 99, 301, 908
5, 15, 30, 135, 405, 1215, 3645
Identify the letter-cluster that does not belong to the following series.
RBK, TYM, VVO, XSP, ZPS, BMU
Select the number from among the given options that is wrong in the following series.
22, 30, 46, 78, 146, 270
In this question, one term in the number series is wrong. Find out the wrong term.
110, 115, 123, 134, 148, 163, 185
Find out the Wrong number in the following number series.
2, 123, 204, 256, 278, 287
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