Q.6643·Miscellaneous·2019·EasyConsider the following grouped frequency distribution: x f 0-10 8 10-20 12 20-30 10 30-40 p 40-50 9 If the mean of the above data is 25.2, then what is the value of p?View question
Q.6644·Miscellaneous·2019·EasyThere are two parallel streets each directed North to South. A person in the first street travelling from South to North wishes to take the second street which is on his right side. At some place, he makes a 150° turn to the right and he travels for 15 minutes at the speed of 20 km/hr. After that, he takes a left turn of 60° and travels for 20 minutes at the speed of 30 km/hr in order to meet the second street. What is the distance between the two streets?View question
Q.6645·Miscellaneous·2019·EasyWhat is the value of tan 1° tan 2° tan 3° ......... tan 89°?View question
Q.6646·Miscellaneous·2019·EasyWhen hot water is placed into an empty water bottle, the bottle keeps its shape and does not soften. What type of plastic is the water bottle made from?View question
Q.6648·Miscellaneous·2019·EasyIf tan x = 1, 0 < x < 90°, then what is the value of 2 sin x cos x ?View question
Q.6649·Miscellaneous·2019·EasyWhat is the least number of complete years in which a sum of money put out at 40% annual compound interest will be more than trebled?View question
Q.6650·Miscellaneous·2019·EasyIn an examination, 52% candidates failed in English and 42% failed in Mathematics. If 17% failed in both the subjects, then what percent passed in both the subjects?View question
Q.6651·Miscellaneous·2019·EasyTushar takes 6 hours to complete a piece of work, while Amar completes the same work in 10 hours. If both of them work together, then what is the time required to complete the work?View question
Q.6652·Miscellaneous·2019·EasyIf (4a + 7b) (4c - 7d) = (4a - 7b) (4c + 7d), then which one of the following is correct?View question
Q.6653·Miscellaneous·2019·EasyA field can be reaped by 12 men or 18 women in 14 days. In how many days can 8 men and 16 women reap it?View question
Q.6654·Miscellaneous·2019·EasyIf (a/b) = (b/c) = (c/a) = (a+b)/(b+c), then which one of the following statements is correct?View question
Q.6655·Miscellaneous·2019·EasyA race has three parts. The speed and time required to complete the individual parts for a runner is displayed on the following chart: Part I Part II Part III Speed (kmph) 9 8 7.5 Time (minutes) 50 80 100 What is the average speed of this runner?View question
Q.6658·Miscellaneous·2019·EasyIn a class of 100 students, the average weight is 30 kg. If the average weight of the girls is 24 kg and that of the boys is 32 kg, then what is the number of girls in the class?View question
Q.6659·Miscellaneous·2019·EasyConsider the following statements in respect of two integers p and q (both > 1) which are relatively prime: 1. Both p and q may be prime numbers. 2. Both p and q may be composite numbers. 3. One of p and q may be prime and the other composite. Which of the above statements are correct?View question
Q.6660·Miscellaneous·2019·EasyA plane is going in circles around an airport. The plane takes 3 minutes to complete one round. The angle of elevation of the plane from a point P on the ground at time t seconds is equal to that at time (t + 30) seconds. At time (t + x) seconds, the plane flies vertically above the point P. What is x equal to?View question