A. 4
B. 60
C. 1.75
D. None of these
Explanation:
[(7 * 9) + (2 * 12) + 3]/[(12 * 3) + (81/9)] = (63 + 24 + 3)/(36 + 9) = 90/45 = 2
A. 2 men
B. 12 men
C. 9 men
D. 18 men
For the work to be completed in 9 days,
6 men are required. Time and men are inversely proportional. For the work to be completed in 3 days,
6*9/3 = 18 men are required
A. Rs.2205
B. Rs.2200
C. Rs.2160
D. Rs.2040
Explanation:
A = 2000(21/20)2 = 2205
A. 40
B. 60
C. 240
D. 250
Explanation:
Let S.P = Rs. 100
Then, C.P = Rs. 40
Required Percent = (100/40 × 100) % = 250 %
A. 150
B. 200
C. 250
D. 300
Explanation:
The number of ways to select two men and three women = ⁵C₂ * ⁶C₃
= (5 *4 )/(2 * 1) * (6 * 5 * 4)/(3 * 2)
= 200
A. 60
B. 120
C. 13
D. 61
Explanation:
60 + 5 * 12 / (180/3) = 60 + 5 * 12 / (60)
= 60 + (5 * 12)/60 = 60 + 1 = 61.
A. 200 gm
B. 150 gm
C. 50 gm
D. 10 gm