In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the button corresponding to it. If the sentence is free from error, click the 'No error' option.
I and my wife (A) / were declared (B) / the best couple at the party (C) / No error (D).
1). A
2). B
3). C
4). D
12 copies of a book were sold for Rs. 1800 thereby gaining cost price of 3 copies. The cost price of a copy of the book is
1). Rs. 120
2). Rs. 150
3). Rs. 1200
4). Rs. 1500
The least six digit number which is a perfect square is
1). 100489
2). 100000
3). 100256
4). 100225
A pilot in an aeroplane at an altitude of 200 m observes two points lying on either side of a river. If the angles of depression of the two points be 45° and
60°, then the width of the river is
1). $(200+\frac{200}{\sqrt{3}})m$
2). $(200-\frac{200}{\sqrt{3}})m$
3). $(400\sqrt{3})m$
4). $(\frac{400}{3})m$
If PQ and PR be the two tangents to a circle with centre O such that ∠QPR = 120° then ∠POQ is
1). 90°
2). 45°
3). 30°
4). 60°