A. 99
B. 90
C. 95
D. 100
A. 2
B. 3 3⁄7
C. 4 ¼
D. 5
Work done by P in 1 day = 1/24
Work done by Q in 1 day = 1/6
Work done by R in 1 day = 1/12
Work done by P,Q and R in 1 day = 1/24 + 1/6 + 1/12 = 7/24
=> Working together, they will complete the work in 24/7 days = 3 3⁄7 days
A. 49
B. 98
C. 492
D. 982
Explanation:
(492 * 324) / 324 = 492
A. 60
B. 360
C. 120
D. 240
Explanation:
The given digits are 1, 2, 3, 5, 7, 9
A number is even when its units digit is even. Of the given digits, two is the only even digit.
Units place is filled with only ‘2’ and the remaining three places can be filled in ⁵P₃ ways.
Number of even numbers = ⁵P₃ = 60.
A. Rs 6.06%
B. Rs 6.07%
C. Rs 6.08%
D. Rs 6.09%
Explanation:
Let the sum be Rs 100.
Then P = Rs 100, R = 3 %
per half – year, t = 2 half – years
Amount = Rs [100 × (1 + 3/100)2]
= Rs (100 × 103/100 × 103/100)
= Rs 10609/100 = Rs 106.09
Effective Annual Rate = 6.09%
A. 2 min
B. 3 min
C. 4 min
D. 5 min
Let Q be closed after x min. Then part filled by (P+Q) in x min + part filled by P in ( 9 – x )min
x(1/12+1/16)+(9−x)1/12=1
A. 19
B. 120
C. 624
D. 1024
Explanation:
Multiple choice type questions = 1 2 3 4
Total number of ways = 5x5x5x5 =625.
A number of correct answer = 1.
Number of false answers = 625-1 =624.