A. 10
B. 100
C. 1000
D. 10,000
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.
A. greater than 1
B. equal to 1
C. equal to 1/2
D. equal to ¼
A. 50
B. 30
C. 40
D. 13
Work done by 4 men and 6 women in 1 day = 1/8
Work done by 3 men and 7 women in 1 day = 1/10
Let 1 man does m work in 1 day and 1 woman does w work in 1 day. The above equations can be written as
4m + 6w = 1/8 —(1)
3m + 7w = 1/10 —(2)
Solving equation (1) and (2) , we get m=11/400 and w=1/400
Amount of work 10 women can do in a day = 10 × (1/400) = 1/40
Ie, 10 women can complete the work in 40 days
A. 100%
B. 200%
C. 300%
D. 400%
A. Rs.849.40
B. Rs.877.40
C. Rs.901.60
D. Rs.815.20
E. None of these
Let the costs of each kg of apples and each kg of rice be Rs.a and Rs.r respectively.
10a = 24r and 6 * 20.50 = 2r
a = 12/5 r and r = 61.5
a = 147.6
Required total cost = 4 * 147.6 + 3 * 61.5 + 5 * 20.5
= 590.4 + 184.5 + 102.5 = Rs.877.40
A. 8500
B. 8000
C. 8100
D. 8400