A. 2:5
B. 4:3
C. 1:2
D. 1:1
Rayan’s speed = 1000/300 = 3.33 m/s
Hence Ratio = 1:1
A. If a > b
B. If a ≥ b
C. If a < b
D. If a ≤ b
Explanation:
a3 = 1331 => a = 11
b2 = 121 => b = ± 11
a ≥ b
A. 16 : 5
B. 14 : 5
C. 16 : 7
D. 19 : 5
E. None of these
Explanation:
Quantity of alcohol in vessel P = 62.5/100 * 2 = 5/4 litres
Quantity of alcohol in vessel Q = 87.5/100 * 4 = 7/2 litres
Quantity of alcohol in the mixture formed = 5/4 + 7/2 = 19/4 = 4.75 litres
As 6 litres of mixture is formed, ratio of alcohol and water in the mixture formed = 4.75 : 1.25 = 19 : 5.
A. Rs.2875
B. Rs.1885
C. Rs.2245
D. Rs.2615
A. (36,60)
B. (12,180)
C. (96,25)
D. (72,30)
A. 9
B. 11
C. 23
D. 13
Work done by P in 1 day = 1/23
Let work done by Q in 1 day = q
q × (130/100) = 1/23
=> q = 100/(23×130) = 10/(23×13)
Work done by P and Q in 1 day = 1/23 + 10/(23×13) = 23/(23×13)= 1/13
=> P and Q together can do the work in 13 days
A. 12 hrs
B. 14 hrs
C. 16 hrs
D. 18 hrs
Explanation:
Part filled in 10 hrs.
= 10[1/15+1/20−1/25]=23/30