Q.8731·Miscellaneous·2017·EasyFrom the top of a building 90 m high, the angles of depression of the top and the bottom of a tree are 30° and 45° respectively. What is the height of the tree?View question
Q.8732·Miscellaneous·2017·EasyAn aeroplane flying at a height of 300 m above the ground passes vertically above another plane at an instant when the angles of elevation of the two planes from the same point on the ground are 60° and 45° respectively. What is the height of the lower plane from the ground?View question
Q.8733·Miscellaneous·2017·EasyWhat is the value of sin x [ 1 / (1 + cos x) + 1 / (1 - cos x) ] ?View question
Q.8734·Miscellaneous·2017·EasyConsider the following frequency distribution: x Frequency Cumulative Frequency 1 8 8 2 10 18 3 f₁ 29 4 f₂ 45 What are the values of f₁ and f₂ respectively?View question
Q.8735·Miscellaneous·2017·EasyAn individual purchases three qualities of pencils. The relevant data is given below: Quality Price per pencil (₹) Money spent (₹) A 1.00 50 B 1.50 x C 2.00 20 It is known that the average price per pencil is ₹ 1.25. What is the value of x?View question
Q.8736·Miscellaneous·2017·EasyIn an asymmetrical distribution, if the mean and median of the distribution are 270 and 220 respectively, then the mode of the data isView question
Q.8737·Miscellaneous·2017·EasyIn a pie diagram, there are four slices with angles 150°, 90°, 60° and 60°. A new pie diagram is formed by deleting one of the slices having angle 60° in the given pie diagram In the new pie diagram:View question
Q.8738·Miscellaneous·2017·EasyConsider the following distribution: Class Frequency 0 – 20 17 20 – 40 28 40 – 60 32 60 – 80 f 80 – 100 19 If the mean of the above distribution is 50, what is the value of f?View question
Q.8739·Miscellaneous·2017·EasyThe mean marks obtained by 300 students in a subject are 60. The mean of top 100 students was found to be 80 and the mean of last 100 students was found to be 50. The mean marks of the remaining 100 students areView question
Q.8740·Miscellaneous·2017·EasyThe mean of 5 numbers is 15. If one more number is included, the mean of the 6 numbers becomes 17. What is the included number?View question
Q.8741·Miscellaneous·2017·Easy25 kg of alloy X is mixed with 125 kg of alloy Y. If the amount of lead and tin in the alloy X is in the ratio 1 : 2 and the amount of lead and tin in the alloy Y is in the ratio 2 : 3, then what is the ratio of lead to tin in the mixture?View question
Q.8742·Miscellaneous·2017·EasyThe process of copying genetic information from one strand of DNA into RNA is termed asView question
Q.8743·Miscellaneous·2017·EasyThe Gulf Stream is a poleward flowing current in the Atlantic Ocean. Which one of the following statements with regard to this is not correct?View question
Q.8744·Miscellaneous·2017·EasyWhich one of the following statements with regard to Jet stream, an upper level tropospheric wave, is not correct?View question
Q.8745·Miscellaneous·2017·EasyThe molecular mass of sulphuric acid is 98. If 49 g of the acid is dissolved in water to make one litre of solution, what will be the strength of the acid?View question