A. 10 2/5%
B. 12 3/5%
C. 11 1/5%
D. None of these
Explanation:
Let the required percentage be x%.
x% of 125 = 16 => x/100 * 125 = 16
=> x = 1600/125 = 64/5 = 12 4/5
A. 2:3:5
B. 8:12:15
C. 2:8:5
D. 2:7:5
If A:B = m1:n1 ; B:C = m2:n2
Then, A:B:C = (m1*m2):(n1*m2):(n1*n2)
Therefore, X:Y:Z = (2*4):(3*4):(3*5)
= 8:12:15
A. 12
B. 14
C. 16
D. 18
Explanation:
80 / 12.5 * 2.5 = ?
=> ? = 6.4 * 2.5 = 16
A. 3/5
B. 5/16
C. 2/9
D. None of these
A. Rs.750
B. Rs.700
C. Rs.820
D. Rs.940
A. Rs.420.20
B. Rs.319.06
C. Rs.306.04
D. Rs.294.75
Explanation:
A = 5000(51/50)3
= 5306.04
5000
———–
306.04
A. 3.5km/hr
B. 5.75km/hr
C. 6.5km/hr
D. 7km/hr
Explanation:
Speed Downstream = 15.5 km/hr,
speed upstream = 8.5 km/hr
Speed of the stream = ½ (15.5 – 8.5)km = 3.5 km/hr