A. 324
B. 388
C. 366
D. 372
E. None of these
Explanation:
37.5 % of 976
= 37.5/100 * 976 = 375/1000 * 976 = 3/8 * 976
= 3 * 122 = 366.
A. 1/6
B. 5/8
C. 3/8
D. 5/6
Explanation:
P(at least one graduate) = 1 – P(no graduates) =
1 – ⁶C₃/¹⁰C₃ = 1 – (6 * 5 * 4)/(10 * 9 * 8) = 5/6
A. Rs.900
B. Rs.800
C. Rs.500
D. Rs.1000
X * 4/5 * 80/100 = 576
X = 14400/16
X = 900
A. 72
B. 45
C. 37
D. 79
Explanation:
Sum of the marks for the 12 students = 12 * 36 = 432. The marks of each student are doubled, the sum also will be doubled.
The new sum = 432 * 2 = 864. So, the new average = 864/12 = 72
A. 38 liters
B. 40 liters
C. 38.5 liters
D. 2 liters
Explanation:
95% ———– 38
5% ———— ? => 2 liters
A. 4m
B. 4.1cm
C. 4.2cm
D. 4.3m
A. 10/19
B. 5/9
C. 9/5
D. 19/7