a. 24 b. 32 c. 30 d. 29
Ans: Not Available please comment below the answer for others help, will be updated then.
189. The diameter of the wheel of a car is 14 m. It makes 5 revolutions per 11 seconds. What is the speed of the car?
a. 48 kmph b. 72 kmph c. 64 kmph d. 56 kmph
Ans: 72 kmph
Solution: surface area of a circle = 2 * Pi * r = 44 m
5 revolutions in 11 seconds
1 second = 20 m
20 m/second = 20 * (18/5) = 72 kmph
190. If x,y,z are positive variables and the value of (x+y+z)=18, then what is the maximum value of xyz?
a. 110 b. 100 c. 216 d. 252
Ans: Not Available please comment below the answer for others help, will be updated then.
191. Read the information given below and answer the question that follows:
1. A+B means A is father of B;
2. A-B means A is the sister of B;
3. A/B means A is the mother of B;
4. A*B means A is the brother of B
Which of the following expressions whows that M is the paternal uncle of N?
a. N*P b. N-P+M c. M-P+Q*N d. M*P+Q-N
Ans: Not Available please comment below the answer for others help, will be updated then.
192. if m/(m^{2}-2m+1)=1/5, then determine the value of (m^{3} + m^{-3})
a. 323 b. 321 c. 320 d. 322
Solution: (m^{2}-2m+1)/m=5
Apply denominator to individual terms
m-2+1/m=5
m+1/m=7
so (m+1/m)^{3} = m^{3}+3m+3/m+1/m^{3}
substitute required values in above equation.
Ans: 322
193. The base of a triangular field is 880 m and its height is 550 m. Calculate the charges for supplying water to the field at the rate of Rs. 24.25 per sq.hectometer.
a. Rs 44 b. Rs 24.22 c. Rs 58.68 d. 654.4
Ans: 58.68
Solution: area of a triangle= (1/2) * base * Height
= 242000 sq.m = 2.42 sq.hectometer
Charges= 2.42 * 24.25 = 58.68
194. How many numbers greater than a million can be formed from the digits 4,5,6,0,7,6,5?
a. 540 b. 4320 c. 2160 d. 1080
Ans: Not Available please comment below the answer for others help, will be updated then.
195. Which of the following would not be a consideration while designing model for emergency fire exit?
a. Number of evacuation doors. B. Number of people to be evacuated
c. Comfort of exit d. Number of safety personals
Ans: Not Available please comment below the answer for others help, will be updated then.
196. Ashif sold an article for Rs 315 at a profit of 5%. What would have been the loss incurred by him it it was sold for Rs. 275?
a. 7.625% b. 4.5 % c. 5.625% d. 6.25% e. 8.33%
Ans: Not Available please comment below the answer for others help, will be updated then.
197. a hemisphere, a cylinder and a cone of same height have equal base radii. Determine the ratio of their volumes ( in the same order )
a. 5:2:6 b. 3:4:6 c. 1:2:3 d. 2:3:1
Ans: Not Available please comment below the answer for others help, will be updated then.
198. The internal and external radii of a hollow cylinder are 4 cm and 6 cm respectively. What is the ratio of its internal surface area to its external surface area?
a. 4:9 b. 2:3 c. 3:4 d. 9:4
Ans: Not Available please comment below the answer for others help, will be updated then.
199. If A+B+C = 450 and A:B:C=3:5:7, then the value of “A” is:
a. 60 b. 90 c. 120 d. 140
Ans: Not Available please comment below the answer for others help, will be updated then.
200. Two numbers are in the ratio of 4:9. If the first number is increased by 50% and second number is doubled then the ratio becomes 1:3 then original numbers are:
a. 36,81 b. 27,12 c. 18,36 d. 80,90
ans: 36,81