A) 52 kmph
B) 73 kmph
C) 104 kmph
D) 6 kmph
Correct Option - C
ExplanationWhen two trains travel in opposite directions, relative speed = sum of their speeds = 55+49 = 104 kmph
A) 17
B) 27
C) 37
D) 47
Correct Option - B
ExplanationExcept 27, all other numbers are prime numbers.
A) 5
B) 12
C) 20
D) 21
Correct Option - C
ExplanationMen and time are inversely proportional. No. of days = 10*(14/7) = 20
A) 6:50
B) 7:10
C) 6:40
D) 7:50
Correct Option - A
ExplanationSince the hour hand is between 5 and 6 in the mirror, it should be between 6 and 7 in the clock. The correct time is 6:50.
A) 9^6
B) 9^5
C) 9^23
D) 9^1
Correct Option - B
Explanation9²*9³ = 9^(2+3) = 9^5
A) 1/2
B) 1/3
C) 1/4
D) 1/6
Correct Option - A
ExplanationS = {1,2,3,4,5,6} n(S) = 6 E = {2,4,6} n(E) = 3 P(E) = 3/6 = 1/2
A) 8
B) 7
C) 6
D) 5
Correct Option - B
ExplanationJanuary, March, May, July, August, October, December