1. The geometric mean of two numbers is 16. If one number is 32, the other number is
a) 4 b) 6 c) 8 d) 10
2. The geometric mean of 4 and 16 is
a) 8 b) 12 c) 16 d) None of these
3. The average of first 5 multiples of 3 is
a) 6 b) 8 c) 9 d) None of these
3. The Harmonic Mean of [...]
1. A man rides at the rate of 20 km/hr and stops for 12 minutes at the end of every 25 km. The time he takes to cover a distance of 145 km is
a) 8 hrs. 15 min. b) 8 hrs. 27 min. c) 8 hrs. 30 min. d) 8 hrs. 45 min.
2. A boat move downstream at [...]
1. A car runs at the rate of 15kmph during the first 30kms and at 25kmph during the second 50kms. What is the average speed for the entire trip?
a) 15kmph b) 20kmph c) 25kmph d) 30kmph
2. A train covered the first 5 km of its journey at a speed of 30 km/h and the next 15 km/hr at [...]
3. A starts and walks towards south. He then turns to his right and walks 3km and then again turns left and walks 5km. In which direction is he from the starting point?
a) West b) South c) North d) North-east
4. A went 10 m to the east, then turned north and walked another 5 m, then turned west [...]
1. The missing number (?) in the following series is 3, 7, 9, 13, 15, 19, (?), 25
a) 23 b) 20 c) 21 d) 22
2. Find the missing term in the following series: 1, 1, 2, 3, 5, 8,?, 21.
a) 7 b) 12 c) 13 d) 15
3. Find the missing term in the following series: 81, 9, 64, 8, [...]
ALGEBRICAL PROBLEMS1. (153?109) + (82?153) – (153?91) =?
a) 14,300 b) 15,300 c) 16,300 d) 17,300
2.
a) 3.9 b) 39 c) 34.45 d) 50
3. On simplification:
(0.01?0.01+0.02?0.02+0.03?0.03+0.0004+0.0012+0.0006)?0.036 reduces to
a) 0.1 b) 10 c) 100 d) 1.0
4. (0.6?0.6+0.6)?6 is equal to
a) 0.16 b) 0.46 c) 0.37 d) 0.42
5.
a) 35 b) 30 c) 10 d) 1
6. (3) 4 + (2)4 + 2?25 = ?
a) 69.5 b) 97.5 c) 96.5 d) none of these
7.
a) b) c) [...]
1. The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 51.4 years. The ratio of number of boys to the numbers of girls in the class is
a) 1 : 2 b) 3 : 4 c) 3 :5 [...]
1. (153 x 109) + (82 x 153) + (153 x 91) = ?
a) 14,300 b) 15,300 c) 16,300 d) 17,300
2. In the geometric series, , , ,????, the 8th term is
a) b) c) d)
3. The average weight of a group of 25 boys was calculated to be 30 kg. It was later discovered that [...]
1. Gas law was given by
a) Boyle
b) Ostwald
c) Arrhenius
d) Faraday
2. The unit of work and energy is
a) joule
b) Newton
c) Coulomb
d) Diaptre
3. Unit of charge is
a) coulomb
b) farad
c) Newton
d) volt
4. ?Decibel? is a unit of
a) sound intensity
b) light
c) heat
d) electricity
5. Ball pen works on the principle of
a) Viscosity
b) Boyle?s law
c) Gravitational force
d) Capillarity [...]
RATIO AND PROPORTIO1. What is the ration between the ages of Suresh and Ramesh if their ages are 18 years and 24 years respectively.
a) 4:3
b) 2:3
c) 3:4
d) 8:3
2. If A:B =4:3, B: C=5:2 then A:B:C is
a) 20:6
b) 6:2:4
c) 1:2:3
d)20:15:6
3. If 6 girls complete a work in 15 days then 9 girls will complete the work [...]